3z-20=-7z

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Solution for 3z-20=-7z equation:


Simplifying
3z + -20 = -7z

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

Solving
-20 + 3z = -7z

Solving for variable 'z'.

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

Add '7z' to each side of the equation.
-20 + 3z + 7z = -7z + 7z

Combine like terms: 3z + 7z = 10z
-20 + 10z = -7z + 7z

Combine like terms: -7z + 7z = 0
-20 + 10z = 0

Add '20' to each side of the equation.
-20 + 20 + 10z = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 10z = 0 + 20
10z = 0 + 20

Combine like terms: 0 + 20 = 20
10z = 20

Divide each side by '10'.
z = 2

Simplifying
z = 2

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