12x/5-7x/5+4=-21

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Solution for 12x/5-7x/5+4=-21 equation: 



12x/5-7x/5+4=-21

We move all terms to the left:

12x/5-7x/5+4-(-21)=0

We add all the numbers together, and all the variables

12x/5-7x/5+25=0

We multiply all the terms by the denominator


12x-7x+25*5=0

We add all the numbers together, and all the variables

5x+125=0

We move all terms containing x to the left, all other terms to the right

5x=-125

x=-125/5

x=-25

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