chelsea17143 chelsea17143

10-02-2021
Mathematics

contestada

Help please due tonight

Solve the system of equations using elimination: 2x + 3y = -1 and -2x + 4y = 8

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10-02-2021

(1) 2x + 3y = -1
(2) -2x + 4y = 8
(1) x 4 8x + 12y = -4
(2) x 3 -6x + 12y = 24
(2) - (1) -14x = 28
X = 28/-14 = -2
(Sub x into (1)) 2(-2) + 3y = -1
-4 + 3y = -1
3y = 3
Y = 1

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