Question

solve the following by cross multiplication method :

1) 5x + 3y=35
2x+4y=28​

Answer 1

Answer:

5x+3y=35

5x=35-3y

x=35-3y/5. this is value 1

2x+4y=28

replace the value of x with 1

so, 2(35-3y/5)+4y=28

70-6y/10+4y=28

{LCM OF 10 AND 1=10}

70-6y+40y=280

70-36y=280

y=210/-3

y=-7

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Answer 2

Answer:

we have to do cross multiplying for solve the problem