Question

by cross multiplication method​

Answer 1

Answer:

1) 5x+2y/30 = 4

=> 5x+2y = 120

=> 5x = 120 - 2y

=> x = 120-2y/5 (answer)

2) 4x-y/12 = 19/4

=> 4x-y/3 = 19

=> 4x-y = 57

=> 4x = 57+y

=> x = 57+y/4 (answer)

Step-by-step explanation:

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