7x+10=-21x-4

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Solution for 7x+10=-21x-4 equation: 



7x+10=-21x-4

We move all terms to the left:

7x+10-(-21x-4)=0

We get rid of parentheses

7x+21x+4+10=0

We add all the numbers together, and all the variables

28x+14=0

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

28x=-14

x=-14/28

x=-1/2

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