-7x-7(3x-7)=-147

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Solution for -7x-7(3x-7)=-147 equation:


Simplifying
-7x + -7(3x + -7) = -147

Reorder the terms:
-7x + -7(-7 + 3x) = -147
-7x + (-7 * -7 + 3x * -7) = -147
-7x + (49 + -21x) = -147

Reorder the terms:
49 + -7x + -21x = -147

Combine like terms: -7x + -21x = -28x
49 + -28x = -147

Solving
49 + -28x = -147

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 + -28x = -147 + -49

Combine like terms: 49 + -49 = 0
0 + -28x = -147 + -49
-28x = -147 + -49

Combine like terms: -147 + -49 = -196
-28x = -196

Divide each side by '-28'.
x = 7

Simplifying
x = 7

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