3(3+z)=18

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Solution for 3(3+z)=18 equation: 



3(3+z)=18

We move all terms to the left:

3(3+z)-(18)=0

We add all the numbers together, and all the variables

3(z+3)-18=0

We multiply parentheses

3z+9-18=0

We add all the numbers together, and all the variables

3z-9=0

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

3z=9

z=9/3

z=3

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