3x+21=5(x-1)

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Solution for 3x+21=5(x-1) equation: 



3x+21=5(x-1)

We move all terms to the left:

3x+21-(5(x-1))=0



We calculate terms in parentheses: -(5(x-1)), so:

5(x-1)

We multiply parentheses

5x-5

Back to the equation:

-(5x-5)



We get rid of parentheses

3x-5x+5+21=0

We add all the numbers together, and all the variables

-2x+26=0

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

-2x=-26

x=-26/-2

x=+13

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