X=55
Multiply both sides of the equation by 11
Move constant to the right-hand side and change its sign
Add the numbers
36 is not prime it is composite
--Answer--
negative integer
--Explanation--
28 - 45 = -17; the number subtracting is greater than the original number.
Basically substitute y into the first equation: 2x+8(2)=20 and solve. Then plug in x to the second equation etc.
No. The last digit is 4, telling us that the whole thing is a multiple of 2.
Also, the sum of its digits is 18 ... divisible by 3 ... telling us that the whole thing is divisible by 3.