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Subjects>Math>Math & Arithmetic

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

Jennifer Rodriguez ∙

Lvl 2

∙ 3y ago

Updated: 12/10/2022

-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

∙ 3y ago

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