Answer:
x =2
Step-by-step explanation: 9 + 3x = 15
-9 + 3x = -9
3x = 6
divide both sides by 3
x = 2
the three other numbers are 2
B) x=12
Step-by-step explanation:
x+22+4x+2= 5x+24
5x+24=84
5x=60
x=12
2/52 is the answer of this question
4 1/2