10z+-20z+4z+-15=15

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Solution for 10z+-20z+4z+-15=15 equation:


Simplifying
10z + -20z + 4z + -15 = 15

Reorder the terms:
-15 + 10z + -20z + 4z = 15

Combine like terms: 10z + -20z = -10z
-15 + -10z + 4z = 15

Combine like terms: -10z + 4z = -6z
-15 + -6z = 15

Solving
-15 + -6z = 15

Solving for variable 'z'.

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

Add '15' to each side of the equation.
-15 + 15 + -6z = 15 + 15

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

Combine like terms: 15 + 15 = 30
-6z = 30

Divide each side by '-6'.
z = -5

Simplifying
z = -5

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