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7x+13x-1=5(4x+5)
We simplify the equation to the form, which is simple to understand
7x+13x-1=5(4x+5)
Reorder the terms in parentheses
7x+13x-1=+(+20x+25)
Remove unnecessary parentheses
+7x+13x-1=+20x+25
We move all terms containing x to the left and all other terms to the right.
+7x+13x-20x=+25+1
We simplify left and right side of the equation.
0x=+26
0=26
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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