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RoseWind [281]
3 years ago
14

-4x + 0.4y = -0.8 6x + 0.4y = 4.2The solution to the system is

Mathematics
1 answer:
vladimir2022 [97]3 years ago
6 0

Answer:

x= 1/2

y=3

Step-by-step explanation:

it is easier to subtract both equation and obtain a new one

1) 6x+0.4y=4.2

2) -4x+0.4y=-0.8

---------------------------------

1) -2)= 10x+0=5 leading to x=1/2

Now just eval x=1/2 in any of the original equations, for instances

1) 6*(1/2) +0.4*y=4.2, which leads to y=3

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<h3>#7</h3>

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