________
6x - 20 + 31 = 180
6x + 11 = 180
6x = 180 - 11
6x = 169
x = 169 ÷ 6
x = 28.2 (No option.)
Answer:
A
Explanation:
6x-20= 118
6x= 118 + 20
6x = 138
x = 138/6
x= 23
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