Answer:
m = 1/7
Explanation:
3m(n + 3p) = n + p
1st step: Replace the known letters
3m(4 + 3 X 8) = n + p
2nd step: Solve inside the parathenstics
3m(28) = n + p
3rd step: simplify both sides of the equation
84m = 4 + 8 (combine like terms)
84m = 12
4th step: divide both sides by 84
m = 1/7