3(7x-1)=39

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Solution for 3(7x-1)=39 equation: 


Simplifying
3(7x + -1) = 39

Reorder the terms:
3(-1 + 7x) = 39
(-1 * 3 + 7x * 3) = 39
(-3 + 21x) = 39

Solving
-3 + 21x = 39

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 = 39 + 3

Combine like terms: -3 + 3 = 0
0 + 21x = 39 + 3
21x = 39 + 3

Combine like terms: 39 + 3 = 42
21x = 42

Divide each side by '21'.
x = 2

Simplifying
x = 2

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