Question

Find the value of x (and y) if you know L||m
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Answer 1

x=50 y=140

Explanation:

Since l and m are parallel, all you have to do is add 40 and y.

Because a straight line has a 180-degree angle, you can subtract 40 from 180 you can find y.

180-40=140

Now we know that 3x-10=140 so we just have to solve.

First, add 10 to each side

3x=150

Then divide by 3

x=50