I’m pretty sure it’s 6.4^4 • b^3
Let the two numbers be x and y
As given, the difference of two numbers is 3, so
or 
....(1)
And their sum is 25, so
.....(2)
Putting x=3+y in equation (2)
As, x+y=25
So the two numbers are = 14 and 11
Hey there! :D
y=2x-9
We can plug that in as y, since y is equal to 2x-9.
5x-3(2x-9)= 23
Distribute.
5x-6x+27= 23
-1x+27=23
Subtract 27 on both sides.
-1x=-4
Divide both sides by -1.
x=4
Now, plug that in for y.
y=2(4)-9
y=8-9
y=-1
(4,-1) <== solution
I hope this helps!
~kaikers
Answer: 7
Step-by-step explanation: All you have to do is use absolute value when a number is closed in so you would say 63 divided by positive 9 = 7
5 rupee coins = x
Two rupee coins = 3x
5(x) + 2(3x) = 77
5x + 6x = 77
11x = 77
77/11 = 7
x=7
Five rupee coins = 7
Two rupee coins = 3(7) = 21
