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3x(15)=45x
We simplify the equation to the form, which is simple to understand
3x(15)=45x
Reorder the terms in parentheses
+(+45x)=45x
Remove unnecessary parentheses
+45x=+45x
We move all terms containing x to the left and all other terms to the right.
+45x-45x=0
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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