x+(x-1)=7(3+x)

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Solution for x+(x-1)=7(3+x) equation:


x+(x-1)=7(3+x)

We simplify the equation to the form, which is simple to understand 
x+(x-1)=7(3+x)

Remove unnecessary parentheses
+x+x-1=+7+*(+3+x+)

Reorder the terms in parentheses
xx-1=+(+21+7x)

Remove unnecessary parentheses
+x+x-1=+21+7x

We move all terms containing x to the left and all other terms to the right. 
+1x+1x-7x=+21+1

We simplify left and right side of the equation. 
-5x=+22

We divide both sides of the equation by -5 to get x. 
x=-4.4

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