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Anonymous
7x + 19 = -2x + 55
Add 2x to both sides:
9x + 19 = 55
Subtract 19 from both sides:
9x = 36
Divide both sides by 9
x = 4
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-19 plus 144 equals 125.
21+21+19+19=80
19 plus 10 equals 29.
4x plus 7 plus 3x equals 19 plus xx = 2
19 + 43 + 13 = 75