SOLUTION: the sum of two numbers is 50. the first number is 43 less than twice the second number. write and solve a system of equations to find the two numbers?

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Question 259012: the sum of two numbers is 50. the first number is 43 less than twice the second number. write and solve a system of equations to find the two numbers?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+2x-43=50
3x=93
x=31
2x-43=19
I don't know why a system of equations?