3x - 10 + x + 8 = 180
4x - 2 = 180
4× = 180 + 2
4x = 182
x = 182 ÷ 4
x = 45,5
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3x - 10 + x + 8 = 180
4x - 2 = 180
4× = 180 + 2
4x = 182
x = 182 ÷ 4
x = 45,5