7z-1=12-3z

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Solution for 7z-1=12-3z equation: 


Simplifying
7z + -1 = 12 + -3z

Reorder the terms:
-1 + 7z = 12 + -3z

Solving
-1 + 7z = 12 + -3z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '3z' to each side of the equation.
-1 + 7z + 3z = 12 + -3z + 3z

Combine like terms: 7z + 3z = 10z
-1 + 10z = 12 + -3z + 3z

Combine like terms: -3z + 3z = 0
-1 + 10z = 12 + 0
-1 + 10z = 12

Add '1' to each side of the equation.
-1 + 1 + 10z = 12 + 1

Combine like terms: -1 + 1 = 0
0 + 10z = 12 + 1
10z = 12 + 1

Combine like terms: 12 + 1 = 13
10z = 13

Divide each side by '10'.
z = 1.3

Simplifying
z = 1.3

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