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solve the system of equation -9x+2y=2 and -3x+y=2 by combining the equations?

Updated: 12/10/2022

Jennifer Rodriguez ∙

Lvl 2

∙ 2y ago

Best Answer

-3X+Y = 2 becomes Y = 2+3X

-9X + 2Y =2 becomes -9X + 2(2+3X) =2, which we can now solve.

-9X + 4 + 6X = 2

-3X = -2

X = 2/3

Going back to our original equation:

Y = 2+3(2/3)

Y = 4

Michael Scalise ∙

Lvl 12

∙ 2y ago

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Q: Solve the system of equation -9x+2y=2 and -3x+y=2 by combining the equations?

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How do you simplify the fourth root of 9x2y2?

This is clearer if you use fractional powers, at least for the intermediate steps. The fourth root of 32x2y2 is (32x2y2)1/4, or 31/2x1/2y1/2. In other words, the square root of 3xy.

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What is the GCF of 9x2y2 and 5x2y3?

The GCF is x^2y^2.

Greatest common factor of 9x2y2 and 5x2y3?

The GCF is x2y2.

How do you simplify the fourth root of 9x2y2?

This is clearer if you use fractional powers, at least for the intermediate steps. The fourth root of 32x2y2 is (32x2y2)1/4, or 31/2x1/2y1/2. In other words, the square root of 3xy.

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