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Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices. 3x-y=0 5x+2y=22 ***I think I have an idea how to solve.. I'm not 100% sure about that
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Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices.

3x-y=0
5x+2y=22

***I think I have an idea how to solve.. I'm not 100% sure about that though.. And idk how to verify... Please explain!! Thank youuu :)

User Luiz Ricardo Cardoso
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1 Answer

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3x - y = 0 . . . (1)
5x + 2y = 22 . . . (2)

From (1), y = 3x . . . (3)

Putting (3) into (2) gives:
5x + 2(3x) = 22
5x + 6x = 22
11x = 22
x = 2

From (3), y = 3(11) = 33

x = 11, y = 33.
User Mike Metzger
by
8.5k points
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