Answer:
3a+7=5a-3
5a-3a=3+7
2a=10
a=5
Again
6b-5=2b+9
6b-2b=5+9
4b=14
b=14/4=7/2
Step-by-step explanation:
Answer:
1716
Step-by-step explanation:
We can use nCr equation to find this
n=13
r=7
Answer:
11
Step-by-step explanation:
it says motor cycles combined with garbage so add both of them then subtract that from the bull dosers
motor =18
garbage=4
18+4=22
bulldosers=11
22-11= 11 more
Answer:
9:3 or 9 to 3
Step-by-step explanation:
Answer:
it should be 12
i think :)
i hope im correct
Step-by-step explanation:
