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jonny [76]
2 years ago
12

Write an equation that you can use to find the value of x.

Mathematics
1 answer:
MariettaO [177]2 years ago
7 0
Line CA is a straight line, meaning it adds up to 180°

Line BE splits the line into two supplementary angles, because when the two angles are added together they will equal 180°

Using the rule of supplementary angles, we can then make the equation 3x + 8x + 15 = 180

Now, simplify the equation by combining like terms

11x + 15 = 180

To solve, isolate x

11x + 15 = 180
11x = 165
x = 15
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