105=3x+4(-5x-12)

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Solution for 105=3x+4(-5x-12) equation:


Simplifying
105 = 3x + 4(-5x + -12)

Reorder the terms:
105 = 3x + 4(-12 + -5x)
105 = 3x + (-12 * 4 + -5x * 4)
105 = 3x + (-48 + -20x)

Reorder the terms:
105 = -48 + 3x + -20x

Combine like terms: 3x + -20x = -17x
105 = -48 + -17x

Solving
105 = -48 + -17x

Solving for variable 'x'.

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

Add '17x' to each side of the equation.
105 + 17x = -48 + -17x + 17x

Combine like terms: -17x + 17x = 0
105 + 17x = -48 + 0
105 + 17x = -48

Add '-105' to each side of the equation.
105 + -105 + 17x = -48 + -105

Combine like terms: 105 + -105 = 0
0 + 17x = -48 + -105
17x = -48 + -105

Combine like terms: -48 + -105 = -153
17x = -153

Divide each side by '17'.
x = -9

Simplifying
x = -9

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