4(12-z)-z=192

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Solution for 4(12-z)-z=192 equation:


Simplifying
4(12 + -1z) + -1z = 192
(12 * 4 + -1z * 4) + -1z = 192
(48 + -4z) + -1z = 192

Combine like terms: -4z + -1z = -5z
48 + -5z = 192

Solving
48 + -5z = 192

Solving for variable 'z'.

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

Add '-48' to each side of the equation.
48 + -48 + -5z = 192 + -48

Combine like terms: 48 + -48 = 0
0 + -5z = 192 + -48
-5z = 192 + -48

Combine like terms: 192 + -48 = 144
-5z = 144

Divide each side by '-5'.
z = -28.8

Simplifying
z = -28.8

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