3=(1.2+x)4.2/2

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Solution for 3=(1.2+x)4.2/2 equation: 



3=(1.2+x)4.2/2

We move all terms to the left:

3-((1.2+x)4.2/2)=0

We add all the numbers together, and all the variables

-((x+1.2)4.2/2)+3=0

We multiply all the terms by the denominator


-((x+1.2)4.2+3*2)=0



We calculate terms in parentheses: -((x+1.2)4.2+3*2), so:

(x+1.2)4.2+3*2

We add all the numbers together, and all the variables

(x+1.2)4.2+6

We multiply parentheses

4.2x+5.04+6

We add all the numbers together, and all the variables

4.2x+11.04

Back to the equation:

-(4.2x+11.04)



We get rid of parentheses

-4.2x-11.04=0

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

-4.2x=11.04

x=11.04/-4.2

x=-2+1/1.5909090909091

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