What is the result of subtracting the second equation from the first? -2x+7y &= 10 3x+7y &= 2

Answer 1

-2x + 7y = 10

- (3x + 7y = 2)

When you subtract one equation from the other, you essentially subtract like terms. In this case, 7y minus 7y would cancel out y, leave you with only x to solve for.

-5x=8

x = -8/5

Plug x = -8/5 back into either formula to solve for y. Verify that x and y work for both equations.