3(7-x)=3

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


Simplifying
3(7 + -1x) = 3
(7 * 3 + -1x * 3) = 3
(21 + -3x) = 3

Solving
21 + -3x = 3

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 + -3x = 3 + -21

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

Combine like terms: 3 + -21 = -18
-3x = -18

Divide each side by '-3'.
x = 6

Simplifying
x = 6

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