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

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


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

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

Reorder the terms:
-105 = 21 + -7x + 21x

Combine like terms: -7x + 21x = 14x
-105 = 21 + 14x

Solving
-105 = 21 + 14x

Solving for variable 'x'.

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

Add '-14x' to each side of the equation.
-105 + -14x = 21 + 14x + -14x

Combine like terms: 14x + -14x = 0
-105 + -14x = 21 + 0
-105 + -14x = 21

Add '105' to each side of the equation.
-105 + 105 + -14x = 21 + 105

Combine like terms: -105 + 105 = 0
0 + -14x = 21 + 105
-14x = 21 + 105

Combine like terms: 21 + 105 = 126
-14x = 126

Divide each side by '-14'.
x = -9

Simplifying
x = -9

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