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# A student determined that the ordered pair l(1,3) is a solution of the following system. x+y=-2 5x+y=5 His reasoning was that the ordered pair...

1. A student determined that the ordered pair l(1,−3) is a solution of the following system.

x+y=-2

5x+y=5

His reasoning was that the ordered pair satisfies the first equation x+y=-2, since 1+(-3)=-2. What went wrong?

2. Decide whether the given ordered pair is a solution of the given system.(-2,-4) : 3x+5y=-26

4x+2y=-16

Is the ordered pair a solution?

3.Determine whether the given ordered pair is a solution of the system of equations. Remember to use alphabetically ordered variables.(5,-8) : 4x=12-y