78=2(s+5)

Solution for 78=2(s+5) equation:

Simplifying
78 = 2(s + 5)

Reorder the terms:
78 = 2(5 + s)
78 = (5 * 2 + s * 2)
78 = (10 + 2s)

Solving
78 = 10 + 2s

Solving for variable 's'.

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

Add '-2s' to each side of the equation.
78 + -2s = 10 + 2s + -2s

Combine like terms: 2s + -2s = 0
78 + -2s = 10 + 0
78 + -2s = 10

Add '-78' to each side of the equation.
78 + -78 + -2s = 10 + -78

Combine like terms: 78 + -78 = 0
0 + -2s = 10 + -78
-2s = 10 + -78

Combine like terms: 10 + -78 = -68
-2s = -68

Divide each side by '-2'.
s = 34

Simplifying
s = 34