kiarakidd21 kiarakidd21

27-01-2018
Mathematics

contestada

4x-9y=1, -4x+6y=-2
solve the system of equations using the linear combination method.

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frenchiegirl frenchiegirl

28-01-2018

4 x - 9 y = 1
- 4 x + 6 y = - 2

- 3 y = - 1
y = 1

4 x - 9 y = 1
4 x - 9 ( 1) = 1
4 x - 9 = 1
4 x = 1 +9
4 x = 10
x = 10/4 = 2.5

S ( 2.5 ; 1)

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