Simplify and solve this equation 4m plus 9 plus 5m-12 equals 42?

Answer 1

To simplify the equation (4m + 9 + 5m - 12 = 42), combine like terms: ( (4m + 5m) + (9 - 12) = 42) simplifies to (9m - 3 = 42). Next, add 3 to both sides: (9m = 45). Finally, divide by 9 to find (m = 5).