5x+7x=3[4x+5]

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Solution for 5x+7x=3[4x+5] equation:


5x+7x=3[4x+5]

We simplify the equation to the form, which is simple to understand 
5x+7x=3(4x+5)

Reorder the terms in parentheses
5x+7x=+(+12x+15)

Remove unnecessary parentheses
+5x+7x=+12x+15

We move all terms containing x to the left and all other terms to the right. 
+5x+7x-12x=+15

We simplify left and right side of the equation. 
0x=+15

0=15

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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