20=2(m+3)

Solution for 20=2(m+3) equation:

Simplifying
20 = 2(m + 3)

Reorder the terms:
20 = 2(3 + m)
20 = (3 * 2 + m * 2)
20 = (6 + 2m)

Solving
20 = 6 + 2m

Solving for variable 'm'.

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

Add '-2m' to each side of the equation.
20 + -2m = 6 + 2m + -2m

Combine like terms: 2m + -2m = 0
20 + -2m = 6 + 0
20 + -2m = 6

Add '-20' to each side of the equation.
20 + -20 + -2m = 6 + -20

Combine like terms: 20 + -20 = 0
0 + -2m = 6 + -20
-2m = 6 + -20

Combine like terms: 6 + -20 = -14
-2m = -14

Divide each side by '-2'.
m = 7

Simplifying
m = 7