(15x+21)/3=5x+7

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Solution for (15x+21)/3=5x+7 equation: 



(15x+21)/3=5x+7

We move all terms to the left:

(15x+21)/3-(5x+7)=0

We get rid of parentheses

(15x+21)/3-5x-7=0

We multiply all the terms by the denominator


(15x+21)-5x*3-7*3=0

We add all the numbers together, and all the variables

(15x+21)-5x*3-21=0

Wy multiply elements

(15x+21)-15x-21=0

We get rid of parentheses

15x-15x+21-21=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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