Solve this system using elimination. x + 2y = 10 2x + 3y = 16
x + 2y = 10 2x + 3y = 16 (x + 2y = 10) * 2 2x + 4y = 20 Eliminate by subtracting eq.1 from eq.2: (2x + 3y = 16) - (2x + 4y = 20) -y = -4 y = 4 x + 2(4) = 10 x + 8 = 10 x = 10 - 8 x = 2 Solution set: (2, 4)
Question
Updated 3/28/2017 12:24:24 PM
Edited by Andrew. [3/28/2017 12:24:23 PM]
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3
x + 2y = 10
2x + 3y = 16
(x + 2y = 10) * 2
2x + 4y = 20
Eliminate by subtracting eq.1 from eq.2:
(2x + 3y = 16) - (2x + 4y = 20)
-y = -4
y = 4

x + 2(4) = 10
x + 8 = 10
x = 10 - 8
x = 2

Solution set: (2, 4)

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