Question

8x + 5y = 9 3x + 2y = 4​

Answer 1

Answer:

8x + 5y = 9........(i)

3x + 2y = 4.....(ii)

Euquation (i) × 2 and (ii) × 5

16x + 10y = 18

15x + 10y = 20

- - -

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x = -2

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put the value of x in equation

8 × -2 + 5y = 9

or, -16 + 5y = 9

or, 5y = 9 + 16

or, 5y = 25

or, y = 25/5

or, y = 5

Step-by-step explanation:

so, x = -2

y = 5

if my ans is correct .......

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Answer 2

$\huge\boxed{\fcolorbox{black}{pink}{❥Aɳʂɯҽɾ࿐}}</p><p></p><p>[tex]8x + 5y = 9 \: \: \: \: \: \: \: \: \: (1) \\ 8x + 2y = 4 \: \: \: \: \: \: \: \: \: \: (2) \\ \\8x + 5y = 9 \\ 8x = 9 - 5y \\ x = \frac{9 - 5y}{8 } \: \: \: \: \: \: \: \: \: (3)$

Substitude the value of x in (2)

$3 \times \frac{9 - 5y}{8} + 2y = 4 \\ \\ \frac{27 - 15y}{8} + 2y = 4 \\ \\ \frac{27 - 15y + 16y}{6} = 4 \\ \\ \frac{27 + y}{8} = 4 \\ \\ 27y + y = 8 \times 4 \\ 27 + y = 32 \\ \\ y = 32 - 27 \\ y = 5$

Put the value of y in (3)

$x = \frac{9 - 5 + 5}{8} \\ \\ \times = \frac{9 - 25}{8} \\ \\ x = \frac{ - 16}{8} \\ \\ x = - 2$