3z-(-11)=20

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Solution for 3z-(-11)=20 equation: 


Simplifying
3z + -1(-11) = 20

Multiply -1 * -11
3z + 11 = 20

Reorder the terms:
11 + 3z = 20

Solving
11 + 3z = 20

Solving for variable 'z'.

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

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

Combine like terms: 11 + -11 = 0
0 + 3z = 20 + -11
3z = 20 + -11

Combine like terms: 20 + -11 = 9
3z = 9

Divide each side by '3'.
z = 3

Simplifying
z = 3

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