42=15+9x

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Solution for 42=15+9x equation:


Simplifying
42 = 15 + 9x

Solving
42 = 15 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
42 + -9x = 15 + 9x + -9x

Combine like terms: 9x + -9x = 0
42 + -9x = 15 + 0
42 + -9x = 15

Add '-42' to each side of the equation.
42 + -42 + -9x = 15 + -42

Combine like terms: 42 + -42 = 0
0 + -9x = 15 + -42
-9x = 15 + -42

Combine like terms: 15 + -42 = -27
-9x = -27

Divide each side by '-9'.
x = 3

Simplifying
x = 3

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