18-x+3=40

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Solution for 18-x+3=40 equation:


Simplifying
18 + -1x + 3 = 40

Reorder the terms:
18 + 3 + -1x = 40

Combine like terms: 18 + 3 = 21
21 + -1x = 40

Solving
21 + -1x = 40

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -1x = 40 + -21

Combine like terms: 21 + -21 = 0
0 + -1x = 40 + -21
-1x = 40 + -21

Combine like terms: 40 + -21 = 19
-1x = 19

Divide each side by '-1'.
x = -19

Simplifying
x = -19

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