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Let x be the gross production of products , and let y be the gross production of machinery and X= [ y x ] we
Let x be the gross production of products , and let y be the gross production of machinery and X= [ yx ]
- we have D =[588] and A = [0.20.60.20.2] so X should satisfy the equation X=AX + D then (I2- A)X= D where (I2- A) =[0.210.610.20.2] = [0.20.40.80.2]
- then [0.2x+0.8y0.4x0.2y] = [588] thus 0.4x - 0.2y = 88 and - 0.2x + 0.8y = 5
- then 2x - y = 440 (Eq1) and - x+ 4y = 25 (Eq2)
- 4(Eq1) + (Eq2) => 7x = 1785 thenx= 255andy= 2x-440 = 70
Hence:
- products255units
- machinery70units
I get confused on this step
- then 2x - y = 440 (Eq1) and - x+ 4y = 25 (Eq2)
how do we get those equations
also how do you come up with this part
- 4(Eq1) + (Eq2) => 7x = 1785 thenx= 255andy= 2x-440 = 70
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