hdithere137 hdithere137

29-12-2020
Mathematics

contestada

Solve the system using elimination.
3x + 4y = 2
2x + 2y = 4
([?], [ ])

Respuesta :

ChoiSungHyun ChoiSungHyun

29-12-2020

Step-by-step explanation:

3x + 4y = 2

- (2x + 2y = 4)

=> x + 2y = -2.

2x + 2y = 4

- (x + 2y = -2)

=> x = 6.

3(6) + 4y = 2, 18 + 4y = 2, y = -4.

Hence x = 6, y = -4.

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