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Math·Algebra·Systems of two linear equations in two variables
medium6x+3y=5
A system of two linear equations consists of the equation above and one of the equations listed below. If the system has at least one solution, which of the following could be the other equation?
I. 1.9x+4.5y=7.5
II. 1.9x−4.5y=7.5
A system of two linear equations consists of the equation above and one of the equations listed below. If the system has at least one solution, which of the following could be the other equation?
I. 1.9x+4.5y=7.5
II. 1.9x−4.5y=7.5
A
I only
B
II only
C
I and II
D
Neither I nor II