What is A and B?
I wrote my answer like this:
56/7 = 8
A = 8 * 3 = 24
B = 8 * 4 = 32
Yet I was told that there was a better and more general way of doing it.
You could do it like this:
A/B = 3/4 Multiply both sides by B
A = 3/4 B
Now substitute this result into the forst equation:
A + B = 56
3/4 B + B = 56
1 3/4 B = 56 Divide each side by 1 3/4
B = 32 So A = 24
Thanks for the response, kind stranger!
