40-21=x-8

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Solution for 40-21=x-8 equation: 


Simplifying
40 + -21 = x + -8

Combine like terms: 40 + -21 = 19
19 = x + -8

Reorder the terms:
19 = -8 + x

Solving
19 = -8 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
19 + -1x = -8 + x + -1x

Combine like terms: x + -1x = 0
19 + -1x = -8 + 0
19 + -1x = -8

Add '-19' to each side of the equation.
19 + -19 + -1x = -8 + -19

Combine like terms: 19 + -19 = 0
0 + -1x = -8 + -19
-1x = -8 + -19

Combine like terms: -8 + -19 = -27
-1x = -27

Divide each side by '-1'.
x = 27

Simplifying
x = 27

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