Question

solve the following equation with cross multiplication method: 4x+9y=5,3x-5y=39​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

4x +9y =5 equation 1

3x - 5y = 39 equation 2

5×4x +9y =5

20x +45 y=25 equation3

9× 3x - 5y = 39

27x - 45y = 351 equation4

add equation 4 & 3

27x -45 y = 351

20x + 45y = 25

47x. =376

x = 8

put x=8 in equation 1

4x +9y =5

4×8+9y=5

24 + 9y = 5

9y =5-32

9y=27

y=-3