7(1+3x)-4=87*

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Solution for 7(1+3x)-4=87* equation: 



7(1+3x)-4=87*

We move all terms to the left:

7(1+3x)-4-(87*)=0

We add all the numbers together, and all the variables

7(3x+1)-4-0=0

We add all the numbers together, and all the variables

7(3x+1)-4=0

We multiply parentheses

21x+7-4=0

We add all the numbers together, and all the variables

21x+3=0

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

21x=-3

x=-3/21

x=-1/7

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