7x-4y=20 for y when x=3

asked Sep 17, 2018 118k views

2 votes

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2 votes

I think it is y=-.25
7*3 - 4y = 20
21 - 4y = 20
subtract 21 from each side
- 4y = - 1
divide each side by - 4
y= -.25

5.9k points

6 votes

the answer to 7x-4y=20 for y when x=3 is y = 25 i think

NiCk Newman answered Sep 22, 2018

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