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Anonymous
21x^2
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You're asking for the difference: (3x + 2) - (5 - 7x).(3x + 2) - (5 - 7x) =3x + 2 - 5 + 7x =10x - 3.It is (10x - 3) greater.
7x+6 = -3x-24 7x+3x = -24-6 10x = -30 x = -3
11
-1
7x - 11 - 19 = 3x 4x = 30 x = 15/2