3x-4(2x+7)=9x

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Solution for 3x-4(2x+7)=9x equation:


Simplifying
3x + -4(2x + 7) = 9x

Reorder the terms:
3x + -4(7 + 2x) = 9x
3x + (7 * -4 + 2x * -4) = 9x
3x + (-28 + -8x) = 9x

Reorder the terms:
-28 + 3x + -8x = 9x

Combine like terms: 3x + -8x = -5x
-28 + -5x = 9x

Solving
-28 + -5x = 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.
-28 + -5x + -9x = 9x + -9x

Combine like terms: -5x + -9x = -14x
-28 + -14x = 9x + -9x

Combine like terms: 9x + -9x = 0
-28 + -14x = 0

Add '28' to each side of the equation.
-28 + 28 + -14x = 0 + 28

Combine like terms: -28 + 28 = 0
0 + -14x = 0 + 28
-14x = 0 + 28

Combine like terms: 0 + 28 = 28
-14x = 28

Divide each side by '-14'.
x = -2

Simplifying
x = -2

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