0.3(3z+6)+31.4=0.7(3z-4)

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Solution for 0.3(3z+6)+31.4=0.7(3z-4) equation: 



0.3(3z+6)+31.4=0.7(3z-4)

We move all terms to the left:

0.3(3z+6)+31.4-(0.7(3z-4))=0

We multiply parentheses

0.9z-(0.7(3z-4))+1.8+31.4=0



We calculate terms in parentheses: -(0.7(3z-4)), so:

0.7(3z-4)

We multiply parentheses

2.1z-2.8

Back to the equation:

-(2.1z-2.8)



We add all the numbers together, and all the variables

0.9z-(2.1z-2.8)+33.2=0

We get rid of parentheses

0.9z-2.1z+2.8+33.2=0

We add all the numbers together, and all the variables

-1.2z+36=0

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

-1.2z=-36

z=-36/-1.2

z=+30

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