-3(7x-1)=87

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Solution for -3(7x-1)=87 equation:


Simplifying
-3(7x + -1) = 87

Reorder the terms:
-3(-1 + 7x) = 87
(-1 * -3 + 7x * -3) = 87
(3 + -21x) = 87

Solving
3 + -21x = 87

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -21x = 87 + -3

Combine like terms: 3 + -3 = 0
0 + -21x = 87 + -3
-21x = 87 + -3

Combine like terms: 87 + -3 = 84
-21x = 84

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

Simplifying
x = -4

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