1.5z-2.1(2z+3)=4.2z+0.3(z+9)

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Solution for 1.5z-2.1(2z+3)=4.2z+0.3(z+9) equation: 



1.5z-2.1(2z+3)=4.2z+0.3(z+9)

We move all terms to the left:

1.5z-2.1(2z+3)-(4.2z+0.3(z+9))=0

We multiply parentheses

1.5z-4.2z-(4.2z+0.3(z+9))-6.3=0



We calculate terms in parentheses: -(4.2z+0.3(z+9)), so:

4.2z+0.3(z+9)

We multiply parentheses

4.2z+0.3z+2.7

We add all the numbers together, and all the variables

4.5z+2.7

Back to the equation:

-(4.5z+2.7)



We add all the numbers together, and all the variables

-2.7z-(4.5z+2.7)-6.3=0

We get rid of parentheses

-2.7z-4.5z-2.7-6.3=0

We add all the numbers together, and all the variables

-7.2z-9=0

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

-7.2z=9

z=9/-7.2

z=-1+1/4

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