15x+42=5x+3

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Solution for 15x+42=5x+3 equation: 



15x+42=5x+3

We move all terms to the left:

15x+42-(5x+3)=0

We get rid of parentheses

15x-5x-3+42=0

We add all the numbers together, and all the variables

10x+39=0

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

10x=-39

x=-39/10

x=-3+9/10

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