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I'm trying to help my son with this work but I don't understand it can anyone please help me with these answers

I'm trying to help my son with this work but I don't understand it can anyone please-example-1
User LilMoke
by
6.4k points

1 Answer

5 votes
On #9, it gives you the y value. So plug it into the equation.

5x+3(4)=7
5x+12=7
Subtract 12 from both sides.
5x=-5
Divide both sides by 5.
X=-1.

User Udoyhasan
by
7.2k points
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