Answer:
4/13
Step-by-step explanation:
Use the Chinese remainder theorem. Suppose we set

. Then clearly taken modulo 12, the second term vanishes, and incidentally

; taken modulo 13, the first term vanishes, but the second term leaves a remainder of 2. To counter this, we can multiply the second term by the inverse of 12 modulo 13, which is 12 since

.
So, we found that

, but the least positive solution is

, and in general we can have

for any integer

.
Now, since

, or

, we know that there are 32 possible integers

that satisfy the congruences.
Answer:
7.5
Step-by-step explanation:
2x+12=6x-18
2x=6x-30
-4x=-30
x=7.5
Answer:
Step-by-step explanation:
It’s B trust me