All you have to do is divide 7 by 63. When you do that you get X=63/7. Divide those and you're left with X=9. Plug it back in 7(9)=63
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7x + y = 4y = 4 - 7x
7x = 35 (divide by 7 on both sides to get x by itself)x = 5
6 = 7x + x First, add 7x and x.6 = 8xNow, divide both sides by 8.6/8 = xSimplify the answer.3/4 = x.
2x+3=9x 3=9x-2x 3=7x x=3/7
7x = 56 To find the solution for x, you should divide both sides of the equation by 7 to get x = 8.