15-19=4z

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Solution for 15-19=4z equation:


Simplifying
15 + -19 = 4z

Combine like terms: 15 + -19 = -4
-4 = 4z

Solving
-4 = 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.
-4 + -4z = 4z + -4z

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

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

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

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

Divide each side by '-4'.
z = -1

Simplifying
z = -1

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