Answer:
OB=4
Step-by-step explanation:
Step 1: Subtract 5 from both sides.
4x+5−5=21−5
4x=16
Step 2: Divide both sides by 4.
4x/4=16/4
x=4
Answer:
x=4
Answer:
where is the questin
Step-by-step explanation:
Answer:
3, 6, 12, 15
Step-by-step explanation:
3/12= 4
3/9= 3
Step-by-step explanation:
I used my calculator, so they should be correct.