SOLUTION: whats the answer for x 3x+4x-x=12 5x+7x-2x=30 10x=7x+3 15x-10=20

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Question 225660: whats the answer for x
3x+4x-x=12
5x+7x-2x=30
10x=7x+3
15x-10=20

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3x+4x-x=12
6X=12
X=12/6
X=2 ANS.
5x+7x-2x=30
10X=30
X=30/10
X=3 ANS.
10x=7x+3
10X-7X=3
3X=3
X=3/3
X=1 ANS.
15x-10=20
15X=20+10
15X=30
X=30/15
X=2 ANS.