Solve for x and y:0.4x + 0.3y = 1.7,0.7x – 0.2y = 0.8.

1.	Solve for x and y:0.4x + 0.3y = 1.7,0.7x – 0.2y = 0.8.
Answer» 0.4x + 0.3y = 1.7 0.7x – 0.2y = 0.8 Multiply both the equations by 10, we get 4x + 3y = 17 …………(1) 7x – 2y = 8 ..………..(2) Multiply (1) by 2 and (2) by 3, 8x + 6y = 34 21x – 6y = 24 Adding both the equations 29x = 58 x = 2 From (1); 4 x 2 + 3y = 17 8 + 3y = 17 3y = 17 – 8 = 9 y = 3 Answer: x = 2, y = 3

Answer»

0.4x + 0.3y = 1.7

0.7x – 0.2y = 0.8

Multiply both the equations by 10, we get

4x + 3y = 17 …………(1)

7x – 2y = 8 ..………..(2)

Multiply (1) by 2 and (2) by 3,

8x + 6y = 34

21x – 6y = 24

Adding both the equations

29x = 58

x = 2

From (1); 4 x 2 + 3y = 17

8 + 3y = 17

3y = 17 – 8 = 9

y = 3

Answer: x = 2, y = 3

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