SOLUTION: Use substitution to solve each system of equations. If the system does NOT have exactly one solution, state whether it has NO solutions, or INFINITELY MANY solutions.
1.) y=7-x
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-> SOLUTION: Use substitution to solve each system of equations. If the system does NOT have exactly one solution, state whether it has NO solutions, or INFINITELY MANY solutions.
1.) y=7-x
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Question 396392: Use substitution to solve each system of equations. If the system does NOT have exactly one solution, state whether it has NO solutions, or INFINITELY MANY solutions.
1.) y=7-x
2x-y=8 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Use substitution to solve each system of equations. If the system does NOT have exactly one solution, state whether it has NO solutions, or INFINITELY MANY solutions.
1.)
y=7-x
2x-y=8
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Substitute for "y" and solve for "x":
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2x -(7-x) = 8
2x + x -7 = 8
3x = 15
x = 5
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Solve for "y":
y = 7-x
y = 7-5
y = 2
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Solution: (5,2)
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Cheers,
Stan H.
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