3x+45=7x+15

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Solution for 3x+45=7x+15 equation: 



3x+45=7x+15

We move all terms to the left:

3x+45-(7x+15)=0

We get rid of parentheses

3x-7x-15+45=0

We add all the numbers together, and all the variables

-4x+30=0

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

-4x=-30

x=-30/-4

x=7+1/2

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