Mathematics

Grade6

Easy

Question

# (b - 2) + a, where a = 7 and b = 8?

- 14
- 15
- 13
- 0

Hint:

Mathematics

Grade6

Easy

Question

- 14
- 15
- 13
- 0

Hint:

There are two variables and one constant in the above expression. The variables are: ‘b’ and ‘a’. Values assigned to the variables are b = 8 and a = 7. We have to substitute these values and find the final value of the expression.

There are three terms in the above expression. We will consider the bracket first. We have to subtract -2 from b and then add a.

We have to first substitute the value and perform the required operations.

To substitute the value, we have to replace b by 8 and a by 7. After substituting the value, we will get the following equation:

(b-2)+a = [(8)-2]+(7)

(b-2)+a = (6)+(7)

(b-2)+a = 13

Therefore, the value of equation is 13

So option (c), which is ‘13’, is the right option.