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7x+3=7(x-7)
We simplify the equation to the form, which is simple to understand
7x+3=7(x-7)
Reorder the terms in parentheses
7x+3=+(+7x-49)
Remove unnecessary parentheses
+7x+3=+7x-49
We move all terms containing x to the left and all other terms to the right.
+7x-7x=-49-3
We simplify left and right side of the equation.
0x=-52
0=-52
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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