.80-4x=2.20

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Solution for .80-4x=2.20 equation: 


Simplifying
0.80 + -4x = 2.20

Solving
0.80 + -4x = 2.20

Solving for variable 'x'.

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

Add '-0.80' to each side of the equation.
0.80 + -0.80 + -4x = 2.20 + -0.80

Combine like terms: 0.80 + -0.80 = 0.00
0.00 + -4x = 2.20 + -0.80
-4x = 2.20 + -0.80

Combine like terms: 2.20 + -0.80 = 1.4
-4x = 1.4

Divide each side by '-4'.
x = -0.35

Simplifying
x = -0.35

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