3x+13=4.2x-3

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Solution for 3x+13=4.2x-3 equation: 



3x+13=4.2x-3

We move all terms to the left:

3x+13-(4.2x-3)=0

We get rid of parentheses

3x-4.2x+3+13=0

We add all the numbers together, and all the variables

-1.2x+16=0

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

-1.2x=-16

x=-16/-1.2

x=13+0.4/1.2

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