Four positive integers a, b, c, and d satisfy
ab + a + b = 524
a) What is a-d
b) what are a,b,c,d
These problems go off each other, so you can use part a for part b. Please explain how you solved the problem.
I believe your 2nd equation should read:
bc+c+c=156 NOT 146.
If that is correct, then through simple substitutions, you should get the following values:
a = 20, b = 24, c = 6, d = 14
With above values, ALL your 4 equations balance out.
Thanks dierdurst for that link.
To "Badada": Look at the link provided above and see where you made the MISTAKE!!.
I suspected that there was a mistake in your 2nd equation, when I suggested that 146 might be 156. But, you didn't check it carefully enough, since now it is quite obvious where the mistake is in that equation.
You have it as: bc + c + c =146 instead of: bc + B + c = 146.