7x-9x=3(3x-7)

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Solution for 7x-9x=3(3x-7) equation:


Simplifying
7x + -9x = 3(3x + -7)

Combine like terms: 7x + -9x = -2x
-2x = 3(3x + -7)

Reorder the terms:
-2x = 3(-7 + 3x)
-2x = (-7 * 3 + 3x * 3)
-2x = (-21 + 9x)

Solving
-2x = -21 + 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.
-2x + -9x = -21 + 9x + -9x

Combine like terms: -2x + -9x = -11x
-11x = -21 + 9x + -9x

Combine like terms: 9x + -9x = 0
-11x = -21 + 0
-11x = -21

Divide each side by '-11'.
x = 1.909090909

Simplifying
x = 1.909090909

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