Question

# If and what is the value of 2x - 3 ?

A) 21

B) 15

C) 12

D) 10

Hint:

**Hint:**

- The linear equation is an equation whose degree is 1 .
- We can solve linear equations in two variables by the substitution method.

## The correct answer is: Hence, The value of 2x 3 is 21 .

### Explanation:

- We have given two equations
- We have to find the value of 2x - 3
- We will first solve the given two-equation using the substitution method and then we put the value x in 2x - 3 and then get the answer.

Step 1 of 2:

The given equations are

Now, substitute the value of y in the first equation,

We will get

Step 2 of 2:

Now we will put the value of x in 2x - 3

So,

21

Final answer:

Hence, The value of is .21

**Note: **

We can also solve this question graphically, The point of intersection of graphs of equations

will give us the value of x. And then by putting this value we can easily get the answer.

### Related Questions to study

### Solve each inequality and graph the solution :

6x≥-0.3.

Note:

Whenever we use the symbol ≤ or ≥ , we use the endpoint as well. So, we use complete line to graph the solution.

### Solve each inequality and graph the solution :

6x≥-0.3.

Note:

Whenever we use the symbol ≤ or ≥ , we use the endpoint as well. So, we use complete line to graph the solution.

### MN, NQ and NQ are midsegments of △ ABC. Answer the following questions.

iii) NQ || __

### MN, NQ and NQ are midsegments of △ ABC. Answer the following questions.

iii) NQ || __

### Solve each inequality and graph the solution :

-0.3x<6.

Note:

When we have an inequality with the symbols< or > , we use dotted lines to graph them. This is because we do not include the end point of the inequality.

### Solve each inequality and graph the solution :

-0.3x<6.

Note:

When we have an inequality with the symbols< or > , we use dotted lines to graph them. This is because we do not include the end point of the inequality.

### MN, NQ and NQ are midsegments of △ ABC. Answer the following questions.

ii) BC || __

### MN, NQ and NQ are midsegments of △ ABC. Answer the following questions.

ii) BC || __

### Solve each inequality and graph the solution :

5x+15≤-10

Note:

Whenever we use the symbol , we use the endpoint as well. So, we use complete line to graph the solution.

### Solve each inequality and graph the solution :

5x+15≤-10

Note:

Whenever we use the symbol , we use the endpoint as well. So, we use complete line to graph the solution.

### MN, NQ and NQ are midsegments of △ ABC. Answer the following questions.

i) MQ || __

### MN, NQ and NQ are midsegments of △ ABC. Answer the following questions.

i) MQ || __

### Find AB if MN is the midsegment of △ ABC.

### Find AB if MN is the midsegment of △ ABC.

### In △ ABC, AB = 24, BC = 36, AC = 38

Find MN, NQ, and MQ.

### In △ ABC, AB = 24, BC = 36, AC = 38

Find MN, NQ, and MQ.

### Which of the following is the graph of the equation in the x y -plane?

**Note:**

We can also use slope-intercept method to draw the graph if the given equation. Where we will first compare the given equation with standard equation . When we get the intercepts and slope, we can easily draw the graph.

### Which of the following is the graph of the equation in the x y -plane?

**Note:**

We can also use slope-intercept method to draw the graph if the given equation. Where we will first compare the given equation with standard equation . When we get the intercepts and slope, we can easily draw the graph.