166k views
4 votes
8x – 8 = 7x + 4
x = 12

How do they get 12?

User LordHits
by
4.6k points

2 Answers

5 votes
By simplifying both sides of the equation then isolating the variable
User Gianfra
by
4.7k points
4 votes
8x-8=7x+4
-7x -7x

x-8=4
+8 +8

x= 12

you put the like variables together and then try to isolate the variable
User Jared Thirsk
by
5.5k points
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