3(7x+5)=78

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Solution for 3(7x+5)=78 equation:



3(7x+5)=78
We move all terms to the left:
3(7x+5)-(78)=0
We multiply parentheses
21x+15-78=0
We add all the numbers together, and all the variables
21x-63=0
We move all terms containing x to the left, all other terms to the right
21x=63
x=63/21
x=3

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