-20=-3z-z

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


Simplifying
-20 = -3z + -1z

Combine like terms: -3z + -1z = -4z
-20 = -4z

Solving
-20 = -4z

Solving for variable 'z'.

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

Add '4z' to each side of the equation.
-20 + 4z = -4z + 4z

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

Add '20' to each side of the equation.
-20 + 20 + 4z = 0 + 20

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

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

Divide each side by '4'.
z = 5

Simplifying
z = 5

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