(3-z)-7=42

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Solution for (3-z)-7=42 equation: 



(3-z)-7=42

We move all terms to the left:

(3-z)-7-(42)=0

We add all the numbers together, and all the variables

(-1z+3)-7-42=0

We add all the numbers together, and all the variables

(-1z+3)-49=0

We get rid of parentheses

-1z+3-49=0

We add all the numbers together, and all the variables

-1z-46=0

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

-z=46

z=46/-1

z=-46

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