4*15-x=42

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Solution for 4*15-x=42 equation:


Simplifying
4 * 15 + -1x = 42

Multiply 4 * 15
60 + -1x = 42

Solving
60 + -1x = 42

Solving for variable 'x'.

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

Add '-60' to each side of the equation.
60 + -60 + -1x = 42 + -60

Combine like terms: 60 + -60 = 0
0 + -1x = 42 + -60
-1x = 42 + -60

Combine like terms: 42 + -60 = -18
-1x = -18

Divide each side by '-1'.
x = 18

Simplifying
x = 18

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