9x-2x-42=49

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Solution for 9x-2x-42=49 equation:


Simplifying
9x + -2x + -42 = 49

Reorder the terms:
-42 + 9x + -2x = 49

Combine like terms: 9x + -2x = 7x
-42 + 7x = 49

Solving
-42 + 7x = 49

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 + 7x = 49 + 42

Combine like terms: -42 + 42 = 0
0 + 7x = 49 + 42
7x = 49 + 42

Combine like terms: 49 + 42 = 91
7x = 91

Divide each side by '7'.
x = 13

Simplifying
x = 13

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