Solve the following system of linear equations.
8v - 3u = 5uv
6v - 5u = - 2uv
Answers
Answered by
11
Divide both sides by uv:
Take
= x and
= y
8x - 3y = 5.. (i)
6x - 5y = -2.. (ii)
Multiplying (i) by 5 and (ii) by 3 we get
40x - 15y =25..(iii) and 18x - 15y = -6.. (iv)
Subtract (iv) from (iii),
12x = 31
x = ![\bf\huge\frac{31}{12} \bf\huge\frac{31}{12}](https://tex.z-dn.net/?f=%5Cbf%5Chuge%5Cfrac%7B31%7D%7B12%7D)
Put x =
in (i)
- 3y = 5
Y = ![\bf\huge\frac{47}{9} \bf\huge\frac{47}{9}](https://tex.z-dn.net/?f=%5Cbf%5Chuge%5Cfrac%7B47%7D%7B9%7D)
U = ![\bf\huge\frac{1}{x} \bf\huge\frac{1}{x}](https://tex.z-dn.net/?f=%5Cbf%5Chuge%5Cfrac%7B1%7D%7Bx%7D)
Hence u = ![\bf\huge\frac{21}{31} \bf\huge\frac{21}{31}](https://tex.z-dn.net/?f=%5Cbf%5Chuge%5Cfrac%7B21%7D%7B31%7D)
V = ![\bf\huge\frac{1}{y} \bf\huge\frac{1}{y}](https://tex.z-dn.net/?f=%5Cbf%5Chuge%5Cfrac%7B1%7D%7By%7D)
Hence v = ![\bf\huge\frac{9}{47} \bf\huge\frac{9}{47}](https://tex.z-dn.net/?f=%5Cbf%5Chuge%5Cfrac%7B9%7D%7B47%7D)
fanbruhh:
perfect
Answered by
19
Divide both sides by uv:
8x - 3y = 5.. (i)
6x - 5y = -2.. (ii)
Multiplying (i) by 5 and (ii) by 3 we get
40x - 15y =25..(iii) and 18x - 15y = -6.. (iv)
Subtract (iv) from (iii),
12x = 31
Put x =
Hence u
Hence v
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