20-8x=19-21

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Solution for 20-8x=19-21 equation: 


Simplifying
20 + -8x = 19 + -21

Combine like terms: 19 + -21 = -2
20 + -8x = -2

Solving
20 + -8x = -2

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + -8x = -2 + -20

Combine like terms: 20 + -20 = 0
0 + -8x = -2 + -20
-8x = -2 + -20

Combine like terms: -2 + -20 = -22
-8x = -22

Divide each side by '-8'.
x = 2.75

Simplifying
x = 2.75

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