Let x and y be the numbers
x-y=7 => x = y+7
2x+5y=0
Substitute
2(y+7) +5y = 0
7y = - 14 => y=-2
Use the first equation to get x.
Dragon F.
asked • 01/10/19The difference of two numbers is 7. Two times the first number plus five times the second number is 0. What are the two numbers?
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