21+5x=-3+15

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Solution for 21+5x=-3+15 equation: 



21+5x=-3+15

We move all terms to the left:

21+5x-(-3+15)=0

We add all the numbers together, and all the variables

5x+21-12=0

We add all the numbers together, and all the variables

5x+9=0

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

5x=-9

x=-9/5

x=-1+4/5

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