-3(2+7x)=78

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


Simplifying
-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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