21z-6z+13=

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Solution for 21z-6z+13= equation:


Simplifying
21z + -6z + 13 = 0

Reorder the terms:
13 + 21z + -6z = 0

Combine like terms: 21z + -6z = 15z
13 + 15z = 0

Solving
13 + 15z = 0

Solving for variable 'z'.

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

Add '-13' to each side of the equation.
13 + -13 + 15z = 0 + -13

Combine like terms: 13 + -13 = 0
0 + 15z = 0 + -13
15z = 0 + -13

Combine like terms: 0 + -13 = -13
15z = -13

Divide each side by '15'.
z = -0.8666666667

Simplifying
z = -0.8666666667

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