21(x+4)=

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Solution for 21(x+4)= equation: 


Simplifying
21(x + 4) = 0

Reorder the terms:
21(4 + x) = 0
(4 * 21 + x * 21) = 0
(84 + 21x) = 0

Solving
84 + 21x = 0

Solving for variable 'x'.

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

Add '-84' to each side of the equation.
84 + -84 + 21x = 0 + -84

Combine like terms: 84 + -84 = 0
0 + 21x = 0 + -84
21x = 0 + -84

Combine like terms: 0 + -84 = -84
21x = -84

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

Simplifying
x = -4

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