How do you solve 8x + 6y = 4 and 3x + 5y = 28?
1 Answer
Sep 8, 2015
Explanation:
Given
[1]
[2]
Multiply [1] by 5 and [2] by 6 so we have two equations with the same coefficient for
[3]
[4]
Subtract [4] from [3]
[5]
Divide [5] by
[6]
Substituting
[7]
Do some (tedious) arithmetic
[8]