3(7x-2)=78

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Solution for 3(7x-2)=78 equation: 


Simplifying
3(7x + -2) = 78

Reorder the terms:
3(-2 + 7x) = 78
(-2 * 3 + 7x * 3) = 78
(-6 + 21x) = 78

Solving
-6 + 21x = 78

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 21x = 78 + 6

Combine like terms: -6 + 6 = 0
0 + 21x = 78 + 6
21x = 78 + 6

Combine like terms: 78 + 6 = 84
21x = 84

Divide each side by '21'.
x = 4

Simplifying
x = 4

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