Add the x's
SO 3x=18
divided by 3
So x=3
Answer:
10x+15
Step-by-step explanation:
5 x 2x=10x
5x3=15
1 and 4
3 and 2
2 and 4
3 and 1
In order to find supplementary angles you have to find angles that add up to 180 degrees, which is a straight line.
Answer:
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