Answer:
Maggie is 5 years old
Step-by-step explanation:
3M-4+M=16
add 4 to both sides
4M=20
Divide both sides by 4
20/4 = 5
M/Maggie is 5
D
what
x=4
Step 1: Cross-multiply
Step 2: Divide both sides by 15
Hope it helps:)