71=7x+3x-9

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Solution for 71=7x+3x-9 equation:


Simplifying
71 = 7x + 3x + -9

Reorder the terms:
71 = -9 + 7x + 3x

Combine like terms: 7x + 3x = 10x
71 = -9 + 10x

Solving
71 = -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.
71 + -10x = -9 + 10x + -10x

Combine like terms: 10x + -10x = 0
71 + -10x = -9 + 0
71 + -10x = -9

Add '-71' to each side of the equation.
71 + -71 + -10x = -9 + -71

Combine like terms: 71 + -71 = 0
0 + -10x = -9 + -71
-10x = -9 + -71

Combine like terms: -9 + -71 = -80
-10x = -80

Divide each side by '-10'.
x = 8

Simplifying
x = 8

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