30 + 2x + x - 5 + 45 = 160
2x + x = 160 - 30 + 5 - 45
3x = 90
x = 90/3
x = 30
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30 + 2x + x - 5 + 45 = 160
2x + x = 160 - 30 + 5 - 45
3x = 90
x = 90/3
x = 30