7.8x+12=4x-45

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Solution for 7.8x+12=4x-45 equation: 



7.8x+12=4x-45

We move all terms to the left:

7.8x+12-(4x-45)=0

We get rid of parentheses

7.8x-4x+45+12=0

We add all the numbers together, and all the variables

3.8x+57=0

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

3.8x=-57

x=-57/3.8

x=-15

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