Question

$9x - 4y = 2000 \\ 7x - 3y = 2000$
solve by substitution method don't give unnecessary answer otherwise I will reported .​

Answer 1

Answer:

9x-4y=2000 …..(1) 7x-3y=2000 …..(2) Multiplying equation (1) by 3 and equation (2) by 4 we get 27x-12y=6000 …..(3) 28x-12y=8000 …..(4) Eliminate y by subtracting equation (3) from equation (4) (28x-27y)-(12y-12y)=8000-6000 x= 2000 …..(5) Put value of x from equation(5) in (1) to get y y= 4000

Answer 2

Step-by-step explanation:

hope it will help uh

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