15=4x+45

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Solution for 15=4x+45 equation: 



15=4x+45

We move all terms to the left:

15-(4x+45)=0

We get rid of parentheses

-4x-45+15=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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