5=k/4+b
What does the list method mean?
6x+4y=60
x+y= 1 1
I think you can work out this system of equations.
Design a problem situation, so that the problem can be solved by solving the binary linear equations {x-y = 22x+y = 7.
There are too many answers.
A has more 2 yuan than B. If A's money doubles, then they have 7 yuan. Q, how many are A and B respectively?