Mathematics
Grade10
Easy

Question

Solve the following using the substitution method and find the value of x and y:
-2y = 10
-2x + y = -11

  1. 3, -5 
  2. -3, -5
  3. 1, 3
  4. 2, 3

hintHint:

The linear equation in two variable is an equation with two variable and degree one.

The correct answer is: 3, -5


    Step 1 of 1:
    We have given two equations
    -2y = 10………………………. 1
    -2x + y = -11………………………. 2
    From 1
    -2y = 10
    y = -5
    Now, Put this value of y in 2nd equation.
    -2x + (-5) = -11
    -2x – 5 = -11
    -2x = - 6
    x = 3

    In the substitution method, we first write one variable in the form of another variable.

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