-3(-7x-3)=-75

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Solution for -3(-7x-3)=-75 equation: 


Simplifying
-3(-7x + -3) = -75

Reorder the terms:
-3(-3 + -7x) = -75
(-3 * -3 + -7x * -3) = -75
(9 + 21x) = -75

Solving
9 + 21x = -75

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 21x = -75 + -9

Combine like terms: 9 + -9 = 0
0 + 21x = -75 + -9
21x = -75 + -9

Combine like terms: -75 + -9 = -84
21x = -84

Divide each side by '21'.
x = -4

Simplifying
x = -4

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