Math
posted by Will
Given that: 4x – y + 9 = 0 and 3y – 2x = 7, solve for x.
does x=2?

Steve
Yes. Could you not check your answer to see whether it fit the equations? That's faster than posting here and waiting for an answer.

Reiny
from the first: y = 4x+9
sub into the 2nd:
3(4x+9)  2x = 7
12x + 27  2x = 7
10x = 20
x = 2
you had that, but you only found x, you must also find y
sub x = 2 into y = 4x+9
y = 8+9 = 1
x = 2, y = 1
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