Question

0.4. Use method of cross multiplication to solve the following equations:
2x + y = 8 and 3x - 2y = 5
[3 marks)​

Answer 1

Answer:

2x+y=8---------(1)

3x-2y=5--------(2)

multiply by equ (1) by 2

4x+2y=16-------(3)

(3)+(2) add equ

4x+2y=16

3x-2y=5

---------------

7x=21

x=21/7

x=3

put this value in equ (1)

2x+y=8

2*3+y=8

6+y=8

y=8-6

y=2

therefore the solution is (x,y) (3,2)

Step-by-step explanation:

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Answer 2

Answer:

2x+y=8---------(1)

3x-2y=5--------(2)

multiply by equation (1) by 2

4x+2y=16-------(3)

(3)+(2) add equ ation

4x+2y=16

3x-2y=5

---------------

7x=21

x=21/7

x=3

put this value in equation (1)

2x+y=8

2*3+y=8

6+y=8

y=8-6

y=2

therefore the solution is (x,y) (3,2)

Step-by-step explanation:pls mark me the brainliest.

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