Question

Solve the following pairs of equations simultaneously.........x+2y=7x-y=7

Answer 1

Given:

x + 2y = 7

x - y = 7

To solve this simultaneously, let's use elimination method.

Step 1:

Subtract equation 2 from equation 1:

Subtx + 2y = 7

- x - y = 7

_________

3y = 0

Step 2:

Divide both sides by 3: