4.2=7Z+2.8

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Solution for 4.2=7Z+2.8 equation:


Simplifying
4.2 = 7Z + 2.8

Reorder the terms:
4.2 = 2.8 + 7Z

Solving
4.2 = 2.8 + 7Z

Solving for variable 'Z'.

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

Add '-7Z' to each side of the equation.
4.2 + -7Z = 2.8 + 7Z + -7Z

Combine like terms: 7Z + -7Z = 0
4.2 + -7Z = 2.8 + 0
4.2 + -7Z = 2.8

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -7Z = 2.8 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -7Z = 2.8 + -4.2
-7Z = 2.8 + -4.2

Combine like terms: 2.8 + -4.2 = -1.4
-7Z = -1.4

Divide each side by '-7'.
Z = 0.2

Simplifying
Z = 0.2

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