Imagine the digits are A and B (for the mystery number AB)
A + B = 8 [1st equation]
AB - BA = 18
A*10 + B - 10*B - A = 18
9A - 9B = 18 / divide everything by 9
A - B = 2 [2nd equation]
If you add the two equations you get
2A = 10
A = 5
So B = 8 - 5 = 3
So the number is 53
The answer is 1. hope this helps
I would say that the formal qualifications for serving in the Senate are that you A. must be at least 30 years old and B. must be a US citizen, for at least nine years.
Answer:
x=27
Step-by-step explanation:
distribute the 5 to the x and -4 then set both equations equal to each other subtract 4x from both sides add 20 to both sides and you're left with x=27
Answer:
the secound ansewr
Step-by-step explanation:ik