15x+30+6x=-75

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Solution for 15x+30+6x=-75 equation: 



15x+30+6x=-75

We move all terms to the left:

15x+30+6x-(-75)=0

We add all the numbers together, and all the variables

21x+105=0

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

21x=-105

x=-105/21

x=-5

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