3z+20=5z-11

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Solution for 3z+20=5z-11 equation:


Simplifying
3z + 20 = 5z + -11

Reorder the terms:
20 + 3z = 5z + -11

Reorder the terms:
20 + 3z = -11 + 5z

Solving
20 + 3z = -11 + 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
20 + 3z + -5z = -11 + 5z + -5z

Combine like terms: 3z + -5z = -2z
20 + -2z = -11 + 5z + -5z

Combine like terms: 5z + -5z = 0
20 + -2z = -11 + 0
20 + -2z = -11

Add '-20' to each side of the equation.
20 + -20 + -2z = -11 + -20

Combine like terms: 20 + -20 = 0
0 + -2z = -11 + -20
-2z = -11 + -20

Combine like terms: -11 + -20 = -31
-2z = -31

Divide each side by '-2'.
z = 15.5

Simplifying
z = 15.5

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