70=2(l+15)

Solution for 70=2(l+15) equation:

Simplifying
70 = 2(l + 15)

Reorder the terms:
70 = 2(15 + l)
70 = (15 * 2 + l * 2)
70 = (30 + 2l)

Solving
70 = 30 + 2l

Solving for variable 'l'.

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

Add '-2l' to each side of the equation.
70 + -2l = 30 + 2l + -2l

Combine like terms: 2l + -2l = 0
70 + -2l = 30 + 0
70 + -2l = 30

Add '-70' to each side of the equation.
70 + -70 + -2l = 30 + -70

Combine like terms: 70 + -70 = 0
0 + -2l = 30 + -70
-2l = 30 + -70

Combine like terms: 30 + -70 = -40
-2l = -40

Divide each side by '-2'.
l = 20

Simplifying
l = 20