-5x+7(x-3)=8x-9

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Solution for -5x+7(x-3)=8x-9 equation:


Simplifying
-5x + 7(x + -3) = 8x + -9

Reorder the terms:
-5x + 7(-3 + x) = 8x + -9
-5x + (-3 * 7 + x * 7) = 8x + -9
-5x + (-21 + 7x) = 8x + -9

Reorder the terms:
-21 + -5x + 7x = 8x + -9

Combine like terms: -5x + 7x = 2x
-21 + 2x = 8x + -9

Reorder the terms:
-21 + 2x = -9 + 8x

Solving
-21 + 2x = -9 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-21 + 2x + -8x = -9 + 8x + -8x

Combine like terms: 2x + -8x = -6x
-21 + -6x = -9 + 8x + -8x

Combine like terms: 8x + -8x = 0
-21 + -6x = -9 + 0
-21 + -6x = -9

Add '21' to each side of the equation.
-21 + 21 + -6x = -9 + 21

Combine like terms: -21 + 21 = 0
0 + -6x = -9 + 21
-6x = -9 + 21

Combine like terms: -9 + 21 = 12
-6x = 12

Divide each side by '-6'.
x = -2

Simplifying
x = -2

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