3.2z+1.8=21

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Solution for 3.2z+1.8=21 equation: 


Simplifying
3.2z + 1.8 = 21

Reorder the terms:
1.8 + 3.2z = 21

Solving
1.8 + 3.2z = 21

Solving for variable 'z'.

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

Add '-1.8' to each side of the equation.
1.8 + -1.8 + 3.2z = 21 + -1.8

Combine like terms: 1.8 + -1.8 = 0.0
0.0 + 3.2z = 21 + -1.8
3.2z = 21 + -1.8

Combine like terms: 21 + -1.8 = 19.2
3.2z = 19.2

Divide each side by '3.2'.
z = 6

Simplifying
z = 6

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