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Solve the system of linear equations 2x-4y=-8 and -3x+5y=9.

User LuizZ
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1 Answer

2 votes

Answer:

x = 2, y = 3

Explanation:

isolate x in the first equation.

2x-4y=-8 --> 2x = 4y-8 --> x = 2y-4

plug in x into the second equation to solve for y.

-3(2y-4) + 5y = 9

-6y +12 + 5y = 9

-y + 12 = 9

-y = -3

y=3

plug y into the first equation.

2x-4y=-8

2x - 4(3) = -8 --> 2x-12 = -8 --> 2x = 4

x = 2

User Guya
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