3 years ago

-8x+4y=28 solve for y

2 answers:

8 0

This is how I would do it:
-8x=28-4y divide the entire equation by 4
-2x=7-y Put y back on the left and put x on the right
y=7-2x.

mina [271]3 years ago

7 0

-8x+4y=28 You need to subtract -8x from both sides leaving:
4y=8x+28 From here you need to divide by 4 on both sides leaving:
y= 8x+28/4 Simplify:
y=2x+7

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