-105=3x-3(-7x-13)

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Solution for -105=3x-3(-7x-13) equation:


Simplifying
-105 = 3x + -3(-7x + -13)

Reorder the terms:
-105 = 3x + -3(-13 + -7x)
-105 = 3x + (-13 * -3 + -7x * -3)
-105 = 3x + (39 + 21x)

Reorder the terms:
-105 = 39 + 3x + 21x

Combine like terms: 3x + 21x = 24x
-105 = 39 + 24x

Solving
-105 = 39 + 24x

Solving for variable 'x'.

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

Add '-24x' to each side of the equation.
-105 + -24x = 39 + 24x + -24x

Combine like terms: 24x + -24x = 0
-105 + -24x = 39 + 0
-105 + -24x = 39

Add '105' to each side of the equation.
-105 + 105 + -24x = 39 + 105

Combine like terms: -105 + 105 = 0
0 + -24x = 39 + 105
-24x = 39 + 105

Combine like terms: 39 + 105 = 144
-24x = 144

Divide each side by '-24'.
x = -6

Simplifying
x = -6

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