105=5x-5(4x+9)

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Solution for 105=5x-5(4x+9) equation:


Simplifying
105 = 5x + -5(4x + 9)

Reorder the terms:
105 = 5x + -5(9 + 4x)
105 = 5x + (9 * -5 + 4x * -5)
105 = 5x + (-45 + -20x)

Reorder the terms:
105 = -45 + 5x + -20x

Combine like terms: 5x + -20x = -15x
105 = -45 + -15x

Solving
105 = -45 + -15x

Solving for variable 'x'.

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

Add '15x' to each side of the equation.
105 + 15x = -45 + -15x + 15x

Combine like terms: -15x + 15x = 0
105 + 15x = -45 + 0
105 + 15x = -45

Add '-105' to each side of the equation.
105 + -105 + 15x = -45 + -105

Combine like terms: 105 + -105 = 0
0 + 15x = -45 + -105
15x = -45 + -105

Combine like terms: -45 + -105 = -150
15x = -150

Divide each side by '15'.
x = -10

Simplifying
x = -10

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