7.5=4.2x-3

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Solution for 7.5=4.2x-3 equation: 



7.5=4.2x-3

We move all terms to the left:

7.5-(4.2x-3)=0

We get rid of parentheses

-4.2x+3+7.5=0

We add all the numbers together, and all the variables

-4.2x+10.5=0

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

-4.2x=-10.5

x=-10.5/-4.2

x=2+1/2

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