5x(x-3)+69=15x-x(7-5x)

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Solution for 5x(x-3)+69=15x-x(7-5x) equation:


Simplifying
5x(x + -3) + 69 = 15x + -1x(7 + -5x)

Reorder the terms:
5x(-3 + x) + 69 = 15x + -1x(7 + -5x)
(-3 * 5x + x * 5x) + 69 = 15x + -1x(7 + -5x)
(-15x + 5x2) + 69 = 15x + -1x(7 + -5x)

Reorder the terms:
69 + -15x + 5x2 = 15x + -1x(7 + -5x)
69 + -15x + 5x2 = 15x + (7 * -1x + -5x * -1x)
69 + -15x + 5x2 = 15x + (-7x + 5x2)

Combine like terms: 15x + -7x = 8x
69 + -15x + 5x2 = 8x + 5x2

Add '-5x2' to each side of the equation.
69 + -15x + 5x2 + -5x2 = 8x + 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
69 + -15x + 0 = 8x + 5x2 + -5x2
69 + -15x = 8x + 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
69 + -15x = 8x + 0
69 + -15x = 8x

Solving
69 + -15x = 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.
69 + -15x + -8x = 8x + -8x

Combine like terms: -15x + -8x = -23x
69 + -23x = 8x + -8x

Combine like terms: 8x + -8x = 0
69 + -23x = 0

Add '-69' to each side of the equation.
69 + -69 + -23x = 0 + -69

Combine like terms: 69 + -69 = 0
0 + -23x = 0 + -69
-23x = 0 + -69

Combine like terms: 0 + -69 = -69
-23x = -69

Divide each side by '-23'.
x = 3

Simplifying
x = 3

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