7z=3z-20

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Solution for 7z=3z-20 equation: 


Simplifying
7z = 3z + -20

Reorder the terms:
7z = -20 + 3z

Solving
7z = -20 + 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.
7z + -3z = -20 + 3z + -3z

Combine like terms: 7z + -3z = 4z
4z = -20 + 3z + -3z

Combine like terms: 3z + -3z = 0
4z = -20 + 0
4z = -20

Divide each side by '4'.
z = -5

Simplifying
z = -5

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