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23 votes
23 votes
Set up an equation for x in 12

User Nitin Jha
by
3.2k points

1 Answer

16 votes
16 votes

Under the assumption that u and v are parallel, we have that both expressions: 12x-4, and 10x+10 are equal; because they are corresponding angles. So we have the equation


12x-4=10x+10

Let's solve it:

First step) Everything "with x" on the left-hand side, and everything else on the right-hand side.


12x-10x=10+4

Second step) Solving the sums.


2x=14

Third step) dividing by 2.


x=(14)/(2)=7

User Jonny Henly
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2.6k points