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Anonymous
-2x+7x=5x.
Factor out the x.
-2+7
I hope you know how to use a calculator. :D
Wiki User
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2x+4+7x-4 is the same as 9x
2x+7x-10=4x+3-2x 9x-10=2x+3 7x=13 x=13/7ans
It is 9x
13x
7x + 3