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54x-126=18(3x-7)
We simplify the equation to the form, which is simple to understand
54x-126=18(3x-7)
Reorder the terms in parentheses
54x-126=+(+54x-126)
Remove unnecessary parentheses
+54x-126=+54x-126
We move all terms containing x to the left and all other terms to the right.
+54x-54x=-126+126
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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