15x+21=-15x-1+4

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Solution for 15x+21=-15x-1+4 equation: 



15x+21=-15x-1+4

We move all terms to the left:

15x+21-(-15x-1+4)=0

We add all the numbers together, and all the variables

15x-(-15x+3)+21=0

We get rid of parentheses

15x+15x-3+21=0

We add all the numbers together, and all the variables

30x+18=0

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

30x=-18

x=-18/30

x=-3/5

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