Question

One number is 6 less than another. If 10 times the smaller number minus 4 times the larger number is 12, find the two numbers.

Answer 1

y-6=x
10x-4y=12

plug first equation into second equation:
10(y-6)-4y=12
10y-60-4y=12
6y=72
y=12

12-6=x
x=6