42-(x)=15

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Solution for 42-(x)=15 equation: 


Simplifying
42 + -1(x) = 15

Solving
42 + -1x = 15

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + -1x = 15 + -42

Combine like terms: 42 + -42 = 0
0 + -1x = 15 + -42
-1x = 15 + -42

Combine like terms: 15 + -42 = -27
-1x = -27

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

Simplifying
x = 27

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