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Find the value of x.

Find the value of x.-example-1
User Becquerel
by
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2 Answers

4 votes
Every triangle has to add up to 180 degrees. So if you already have 140 degrees, that’s what the 3x+7 has to add up to.
Find the value of x.-example-1
User Mazix
by
3.4k points
0 votes

Answer:

11

Explanation:

All angles on a triangle equal 180. 80+60=140.

Now to solve for x, we set it to equal 40 for 180-140.

40=3x+7. 40-7=33

33=3x 33/3=11

x=11

User Dylan Bijnagte
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3.6k points