stephaniemkwong
contestada

Use the linear combination method to solve this system of equations.

-2.4x - 3.6y = 1.2
2.4x - 1.2y = 1.2

-1
0
1
-4.8




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Respuesta :

2.4x-1.2y=1.2 /:1,2
-2.4x-3.6y+2.4x-1.2y=1.2+1.2
——————————————-
2x-y=1
-4.8y=2.4
—————-
2x-y=1
y=-0.5
————
y=-0.5
2x-(-0.5)=1
——————
y=-0.5
2x+0.5=1
—————-
y=-0.5
2x=0.5
————
x=0.25
y=-0.5
(x,y)=(0.25, -0.5)
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Answer:

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