7(3x-3)=84

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Solution for 7(3x-3)=84 equation: 


Simplifying
7(3x + -3) = 84

Reorder the terms:
7(-3 + 3x) = 84
(-3 * 7 + 3x * 7) = 84
(-21 + 21x) = 84

Solving
-21 + 21x = 84

Solving for variable 'x'.

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

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

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

Combine like terms: 84 + 21 = 105
21x = 105

Divide each side by '21'.
x = 5

Simplifying
x = 5

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