z+4(.6-z)=2.1

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Solution for z+4(.6-z)=2.1 equation: 


Simplifying
z + 4(0.6 + -1z) = 2.1
z + (0.6 * 4 + -1z * 4) = 2.1
z + (2.4 + -4z) = 2.1

Reorder the terms:
2.4 + z + -4z = 2.1

Combine like terms: z + -4z = -3z
2.4 + -3z = 2.1

Solving
2.4 + -3z = 2.1

Solving for variable 'z'.

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

Add '-2.4' to each side of the equation.
2.4 + -2.4 + -3z = 2.1 + -2.4

Combine like terms: 2.4 + -2.4 = 0.0
0.0 + -3z = 2.1 + -2.4
-3z = 2.1 + -2.4

Combine like terms: 2.1 + -2.4 = -0.3
-3z = -0.3

Divide each side by '-3'.
z = 0.1

Simplifying
z = 0.1

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