2.1=0.8+z

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Solution for 2.1=0.8+z equation: 


Simplifying
2.1 = 0.8 + z

Solving
2.1 = 0.8 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
2.1 + -1z = 0.8 + z + -1z

Combine like terms: z + -1z = 0
2.1 + -1z = 0.8 + 0
2.1 + -1z = 0.8

Add '-2.1' to each side of the equation.
2.1 + -2.1 + -1z = 0.8 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + -1z = 0.8 + -2.1
-1z = 0.8 + -2.1

Combine like terms: 0.8 + -2.1 = -1.3
-1z = -1.3

Divide each side by '-1'.
z = 1.3

Simplifying
z = 1.3

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