3x+4(x+1)=30

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Solution for 3x+4(x+1)=30 equation: 



3x+4(x+1)=30

We move all terms to the left:

3x+4(x+1)-(30)=0

We multiply parentheses

3x+4x+4-30=0

We add all the numbers together, and all the variables

7x-26=0

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

7x=26

x=26/7

x=3+5/7

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