How do you solve 4x - 3y = 22 4x−3y=22 and 4x + 5y = 64x+5y=6?
1 Answer
Explanation:
Set it out in a column like so:
4x - 3y = 224x−3y=22
4x + 5y = 64x+5y=6
Then subtract the second equation from the first one to get:
-8y = 16−8y=16
which can be simplified to
-y = 2" "−y=2 or" "y = -2 y=−2
This, in turn, can be used to work out the
4x -10 = 64x−10=6
4x = 164x=16
x = 4x=4
Hopefully this helps...