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Science
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Can you name the Unknowns?
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Equations
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x+2y=10 3x+y=15?
Solve for x and y.
2x+4y=20 6x+2y=30?
Solve for x and y.
2x+3y-z=-7 -4y+6z=26 5x+9y+2z=-7?
Solve for x and y.
2x+3y-z=-7 -4y+6z=26 6x+9y-3z=-21?
Solve for x and y.
x+4y+2z=-1 5x+25y+z=3 2x+3y+az=b?
Solve for a and b, such that there are an infinite number of solutions.
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