4.2=-4(0.6z-1.2)

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Solution for 4.2=-4(0.6z-1.2) equation: 


Simplifying
4.2 = -4(0.6z + -1.2)

Reorder the terms:
4.2 = -4(-1.2 + 0.6z)
4.2 = (-1.2 * -4 + 0.6z * -4)
4.2 = (4.8 + -2.4z)

Solving
4.2 = 4.8 + -2.4z

Solving for variable 'z'.

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

Add '2.4z' to each side of the equation.
4.2 + 2.4z = 4.8 + -2.4z + 2.4z

Combine like terms: -2.4z + 2.4z = 0.0
4.2 + 2.4z = 4.8 + 0.0
4.2 + 2.4z = 4.8

Add '-4.2' to each side of the equation.
4.2 + -4.2 + 2.4z = 4.8 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + 2.4z = 4.8 + -4.2
2.4z = 4.8 + -4.2

Combine like terms: 4.8 + -4.2 = 0.6
2.4z = 0.6

Divide each side by '2.4'.
z = 0.25

Simplifying
z = 0.25

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