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<1 and <2 are supplementary angles. The measure of <1 is 87º. The measure of <2 is 15x + 18º.
Write and solve an algebraic equation to calculate the value of x.

Respuesta :

Gal20208

Answer: x= 5

Step-by-step explanation: If angles 1 and 2 are supplementary, that means they add up to 180. So if angle 1 is 87, angle 2 has to be 180-87=93. Then the equation would be 15x+18=93. Subtract 18 on both sides. 15x=75. Divide by 15 and your answer is 5.

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