-2=0.8z

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Solution for -2=0.8z equation:


Simplifying
-2 = 0.8z

Solving
-2 = 0.8z

Solving for variable 'z'.

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

Add '-0.8z' to each side of the equation.
-2 + -0.8z = 0.8z + -0.8z

Combine like terms: 0.8z + -0.8z = 0.0
-2 + -0.8z = 0.0

Add '2' to each side of the equation.
-2 + 2 + -0.8z = 0.0 + 2

Combine like terms: -2 + 2 = 0
0 + -0.8z = 0.0 + 2
-0.8z = 0.0 + 2

Combine like terms: 0.0 + 2 = 2
-0.8z = 2

Divide each side by '-0.8'.
z = -2.5

Simplifying
z = -2.5

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