13(X-5)=78

Solution for 13(X-5)=78 equation:

Simplifying
13(X + -5) = 78

Reorder the terms:
13(-5 + X) = 78
(-5 * 13 + X * 13) = 78
(-65 + 13X) = 78

Solving
-65 + 13X = 78

Solving for variable 'X'.

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

Add '65' to each side of the equation.
-65 + 65 + 13X = 78 + 65

Combine like terms: -65 + 65 = 0
0 + 13X = 78 + 65
13X = 78 + 65

Combine like terms: 78 + 65 = 143
13X = 143

Divide each side by '13'.
X = 11

Simplifying
X = 11