Answer and Step-by-step explanation:
To find the value of x, we must add together the two angles, and equal it to 180.
7x + x + 20 = 180
8x + 20 = 180
<u>Subtract 20 from both sides.</u>
8x = 160
<u>Now divide each side by 8.</u>
x = 20
<u>We get the result to be 20 = x.</u>
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<u><em>#teamtrees #PAW (Plant And Water)</em></u>
Answer:
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Step-by-step explanation: