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3(x+6)=x+2(x+9)
We simplify the equation to the form, which is simple to understand
3(x+6)=x+2(x+9)
Reorder the terms in parentheses
+(+3x+18)=x+2*(x+9)
Remove unnecessary parentheses
+3x+18=+x+2+*(+x+9+)
Reorder the terms in parentheses
+3x+18=x+(+2x+18)
Remove unnecessary parentheses
+3x+18=+x+2x+18
We move all terms containing x to the left and all other terms to the right.
+3x-1x-2x=+18-18
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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