3(m+21)=5

Solution for 3(m+21)=5 equation:

Simplifying
3(m + 21) = 5

Reorder the terms:
3(21 + m) = 5
(21 * 3 + m * 3) = 5
(63 + 3m) = 5

Solving
63 + 3m = 5

Solving for variable 'm'.

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

Add '-63' to each side of the equation.
63 + -63 + 3m = 5 + -63

Combine like terms: 63 + -63 = 0
0 + 3m = 5 + -63
3m = 5 + -63

Combine like terms: 5 + -63 = -58
3m = -58

Divide each side by '3'.
m = -19.33333333

Simplifying
m = -19.33333333