-4b+12b=4(7b+12)-4(5b+3)

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Solution for -4b+12b=4(7b+12)-4(5b+3) equation:


-4b+12b=4(7b+12)-4(5b+3)

We simplify the equation to the form, which is simple to understand 
-4b+12b=4(7b+12)-4(5b+3)

Reorder the terms in parentheses
-4b+12b=+(+28b+48)-4*(5b+3)

Remove unnecessary parentheses
-4b+12b=+28b+48-4+*(+5b+3+)

Reorder the terms in parentheses
-4b+12b=+28b+48+(-20b-12)

Remove unnecessary parentheses
-4b+12b=+28b+48-20b-12

We move all terms containing b to the left and all other terms to the right. 
-4b+12b-28b+20b=+48-12

We simplify left and right side of the equation. 
b=+36

0=36

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

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