Answer:
deberia ser
3x+12=6
x=-2
-2
Step-by-step explanation:
-12 -12 subtract 12 on both sides to get x by itself
3x=-6 solve
3x/3 = -6/3 divide both sides by 3
x= -2
it is right
all are right
Answer: 30 students per bus
Step-by-step explanation: 99-9=90
90/3=30
30 students per bus
0 or 0/6
3+6=9
-2+0=-2
0/6=0
