42-4x=7-9x

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Solution for 42-4x=7-9x equation:


Simplifying
42 + -4x = 7 + -9x

Solving
42 + -4x = 7 + -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 + -4x + 9x = 7 + -9x + 9x

Combine like terms: -4x + 9x = 5x
42 + 5x = 7 + -9x + 9x

Combine like terms: -9x + 9x = 0
42 + 5x = 7 + 0
42 + 5x = 7

Add '-42' to each side of the equation.
42 + -42 + 5x = 7 + -42

Combine like terms: 42 + -42 = 0
0 + 5x = 7 + -42
5x = 7 + -42

Combine like terms: 7 + -42 = -35
5x = -35

Divide each side by '5'.
x = -7

Simplifying
x = -7

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