Question

Which variable would be easier to eliminate?

- 4x - 9y= - 10
4x + 2y = 24
Оy
neither
Ох

Answer 1

The easier variable to eliminate is x. Because -4x+4x will be equal to 0 .
After eliminating , the equation now is -9y=-10
and 2y=24
Thus, add the equation up combine like terms. Which now is -7y=14
y=-2

•since y=-2 , now find the x value just substitute y into one of the original equation, let’s substitute to -4x-9(-2)=-10
Solve: -4x+18=-10
Subtract 18 on both side, now : -4x=-28
Divide both side by -4 and x=7
So (x,y) = (7, -2) respectively

Answer 2

It's easier to eliminate x because when you add both equations -4x +4x would be zero