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2(x-7)+x=3(x-7)+7
We simplify the equation to the form, which is simple to understand
2(x-7)+x=3(x-7)+7
Reorder the terms in parentheses
+(+2x-14)+x=3*(x-7)+7
Remove unnecessary parentheses
+2x-14+x=+3+*(+x-7+)+7
Reorder the terms in parentheses
+2x-14+x=+(+3x-21)+7
Remove unnecessary parentheses
+2x-14+x=+3x-21+7
We move all terms containing x to the left and all other terms to the right.
+2x+1x-3x=-21+7+14
We simplify left and right side of the equation.
0x=0
0=0
This equation is an identity, so all real numbers are solutions.
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