45-3x=-75

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Solution for 45-3x=-75 equation: 



45-3x=-75

We move all terms to the left:

45-3x-(-75)=0

We add all the numbers together, and all the variables

-3x+120=0

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

-3x=-120

x=-120/-3

x=+40

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