2z+3+7z=12

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Solution for 2z+3+7z=12 equation: 


Simplifying
2z + 3 + 7z = 12

Reorder the terms:
3 + 2z + 7z = 12

Combine like terms: 2z + 7z = 9z
3 + 9z = 12

Solving
3 + 9z = 12

Solving for variable 'z'.

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

Add '-3' to each side of the equation.
3 + -3 + 9z = 12 + -3

Combine like terms: 3 + -3 = 0
0 + 9z = 12 + -3
9z = 12 + -3

Combine like terms: 12 + -3 = 9
9z = 9

Divide each side by '9'.
z = 1

Simplifying
z = 1

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