7x+3(x+5)=45

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Solution for 7x+3(x+5)=45 equation: 



7x+3(x+5)=45

We move all terms to the left:

7x+3(x+5)-(45)=0

We multiply parentheses

7x+3x+15-45=0

We add all the numbers together, and all the variables

10x-30=0

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

10x=30

x=30/10

x=3

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