Three shirts and 2 neckties cost $69. At the same prices, 2 shirts and 3 neckties cost $61. What is the combined cost of one shirt and one necktie?
I realize this is a system of linear equations in 2 variables.
Let s = shirts and n = neckties
I came up with the following two equations:
3s + 2n = 69
2s + 3n = 61
Is this right so far?
I came up with a combined cost of $35.
The right answer is $26. What did I do wrong?
How do I get $26?