7(1+3x)=49

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Solution for 7(1+3x)=49 equation:



7(1+3x)=49
We move all terms to the left:
7(1+3x)-(49)=0
We add all the numbers together, and all the variables
7(3x+1)-49=0
We multiply parentheses
21x+7-49=0
We add all the numbers together, and all the variables
21x-42=0
We move all terms containing x to the left, all other terms to the right
21x=42
x=42/21
x=2

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