Solve the following system of equations using the addition method. If both variables cancel out, state your solution as no solution or infinitely many solutions.7x + y = -86x + 7y = 30
A. (-1, 5)
B. no solution
C. (6, -2)
D. (-2, 6)
Answer: D
Mathematics
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? 
A. 2x9y2
B. 2x9y2
C. 2x8y2
D. 2x9y2
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The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
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Mathematics