3(z+8.4)=30

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Solution for 3(z+8.4)=30 equation: 


Simplifying
3(z + 8.4) = 30

Reorder the terms:
3(8.4 + z) = 30
(8.4 * 3 + z * 3) = 30
(25.2 + 3z) = 30

Solving
25.2 + 3z = 30

Solving for variable 'z'.

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

Add '-25.2' to each side of the equation.
25.2 + -25.2 + 3z = 30 + -25.2

Combine like terms: 25.2 + -25.2 = 0.0
0.0 + 3z = 30 + -25.2
3z = 30 + -25.2

Combine like terms: 30 + -25.2 = 4.8
3z = 4.8

Divide each side by '3'.
z = 1.6

Simplifying
z = 1.6

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