-7x-7(-3x+17)=-21

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Solution for -7x-7(-3x+17)=-21 equation:


Simplifying
-7x + -7(-3x + 17) = -21

Reorder the terms:
-7x + -7(17 + -3x) = -21
-7x + (17 * -7 + -3x * -7) = -21
-7x + (-119 + 21x) = -21

Reorder the terms:
-119 + -7x + 21x = -21

Combine like terms: -7x + 21x = 14x
-119 + 14x = -21

Solving
-119 + 14x = -21

Solving for variable 'x'.

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

Add '119' to each side of the equation.
-119 + 119 + 14x = -21 + 119

Combine like terms: -119 + 119 = 0
0 + 14x = -21 + 119
14x = -21 + 119

Combine like terms: -21 + 119 = 98
14x = 98

Divide each side by '14'.
x = 7

Simplifying
x = 7

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