.45-x=40

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Solution for .45-x=40 equation: 


Simplifying
0.45 + -1x = 40

Solving
0.45 + -1x = 40

Solving for variable 'x'.

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

Add '-0.45' to each side of the equation.
0.45 + -0.45 + -1x = 40 + -0.45

Combine like terms: 0.45 + -0.45 = 0.00
0.00 + -1x = 40 + -0.45
-1x = 40 + -0.45

Combine like terms: 40 + -0.45 = 39.55
-1x = 39.55

Divide each side by '-1'.
x = -39.55

Simplifying
x = -39.55

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