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

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


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

Reorder the terms:
7x + -7(-7 + 3x) = -105
7x + (-7 * -7 + 3x * -7) = -105
7x + (49 + -21x) = -105

Reorder the terms:
49 + 7x + -21x = -105

Combine like terms: 7x + -21x = -14x
49 + -14x = -105

Solving
49 + -14x = -105

Solving for variable 'x'.

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

Add '-49' to each side of the equation.
49 + -49 + -14x = -105 + -49

Combine like terms: 49 + -49 = 0
0 + -14x = -105 + -49
-14x = -105 + -49

Combine like terms: -105 + -49 = -154
-14x = -154

Divide each side by '-14'.
x = 11

Simplifying
x = 11

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