Question

i need a little help . . Solve for elimination
-4x-9y=-2
-9x-18y=0

Answer 1

-4x-9y=-2 times 2
-9x-18y=0
--------------------
-8x-18y=-4
-9x-18y=0
x =-4
--------------------
-9x-18y=0
y=-2

Answer 2

1) Multiply the top equation(both sides) by 2
2) Add both equations.
3) Solve for x.
4) Substitute the value of x to find the the value of y.

Answer 3

thanks so much . saved my life ^__^

Answer 4

yw

Answer 5

Wait... y is 2 ... not -2

Answer 6

-9x-18y=0
-9(-4)-18y=0
-18y = -36
y=2 ....

Answer 7

ok , thanks for finalizing that .