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4x-15=2(2x+10)
We simplify the equation to the form, which is simple to understand
4x-15=2(2x+10)
Reorder the terms in parentheses
4x-15=+(+4x+20)
Remove unnecessary parentheses
+4x-15=+4x+20
We move all terms containing x to the left and all other terms to the right.
+4x-4x=+20+15
We simplify left and right side of the equation.
0x=+35
0=35
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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