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Anonymous
7x-4020+3x=
7x+-4020+3x=
7x+3x+-4020=
10x+-4020=
10x-4020
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7x + 16 = 3x + 4 4x = -12 x = -3
3x + 4x = 7x
3x + (-2 + 4x) = -2 + 7x
4x-2y+3x+2y When simplified: 7x
-3x + 10x - 5 + 26 = 7x + 21