Question

4. Find five different solutions of each of the following equations:
2x 3y
(a) 2x – 3y = 6 (b)
+ = 3 (c) 3y = 4x
10
5. If x = 3 and y = 4 is a solution of the equation 5x – 3y = k, find the value
of k.
5
6. If x = 3k +2 and y = 2k – 1 is a solution of the equation 4x - 3y +1 = 0,
find the value of k.
7. The cost of 5 pencils is equal to the cost of 2 ballpoints. Write a linear
equation in two variables to represent this statement. (Take the cost of
a pencil to be * x and that of a ballpoint to be * y).
ANSWERS (EXERCISE​

Answer 1

Step-by-step explanation:

5 . 5x-3y=k

5 (3)- 3 (4)=k

15-12=k

3=k

6. 4x-3y+1=0

4 (3k+2)-3 (2k-1) +1=0

12k+8-6k-3+1=0

6k-6=0

k=6/6

k=1

Answer 2

Answer:

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