I'm helping a friend with homework and it's been ages since I've done this stuff. I can figure it out, but I'm guessing there's a formula that will do it faster than my "guess and check"
This is the problem:
From that, I tried to reduce it to actual equations to make it simpler for myself to figure it out. I came up with
A + B + C = 50
A + 6 = B
A + 8 = C
I just kept plugging numbers into the variables until I got the right answers. Surely there's an easier way than throwing a random number into those variables, like an actual formula or process for this?