69=3x+7x+9

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Solution for 69=3x+7x+9 equation:


Simplifying
69 = 3x + 7x + 9

Reorder the terms:
69 = 9 + 3x + 7x

Combine like terms: 3x + 7x = 10x
69 = 9 + 10x

Solving
69 = 9 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
69 + -10x = 9 + 10x + -10x

Combine like terms: 10x + -10x = 0
69 + -10x = 9 + 0
69 + -10x = 9

Add '-69' to each side of the equation.
69 + -69 + -10x = 9 + -69

Combine like terms: 69 + -69 = 0
0 + -10x = 9 + -69
-10x = 9 + -69

Combine like terms: 9 + -69 = -60
-10x = -60

Divide each side by '-10'.
x = 6

Simplifying
x = 6

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