SOLUTION: 7x=3x-(x+20) {{{7x-3x}}}={{{-x-20}}} {{{4x+x}}}=-20 5x=-20 x={{{-20/5}}} x=-4 is the solution.

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Question 236107: 7x=3x-(x+20)
=
=-20
5x=-20
x=
x=-4 is the solution.
Answer by mathsteacher(28)   (Show Source): You can put this solution on YOUR website!

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