The sum of the measures of two angles (5x - 70)° and (4x + 61)° is 180°, find the value of x .
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The sum of the measures of two supplementary angles is 180 ° . So, m ∠ P + m ∠ Q = 180 ° Substitute 2 x + 15 for m ∠ P and 5 x − 38 for m ∠ Q .Hope it is helpfuell
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Answer:
5x - 70 + 4x + 61 = 180
9x- 9 =180
9x= 180+9
9x = 189
x= 189 /9
x= 21
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