Question

solve the following simultaneous equations. 1.) 15x − 17y − 28 = 0; 15y − 17x + 36 = 0​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

15x−17y=28 ...(i)

17x−15y= -36 ...(ii)

On multiplying (i) by 17 and (ii) by 15 and subtracting, we get

255x−289y=476

255x−225y= -540

- + +

________________

−64y=−64

y=1

On putting y=1 in (i), we get

⇒15x−17=28

⇒15x=45

⇒x=3

∴ x=3, y=1