8x-7=-21

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Solution for 8x-7=-21 equation: 



8x-7=-21

We move all terms to the left:

8x-7-(-21)=0

We add all the numbers together, and all the variables

8x+14=0

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

8x=-14

x=-14/8

x=-1+3/4

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