Question

7x+6y= 17 and 6x+7y=10 what is the value of x-y ?​

Answer 1

$\bf\pink{QuestioN:-}$

7x+6y= 17 and 6x+7y=10 what is the value of x-y ?​

$\bf\red{AnsweR:-}$

• 7x + 6y = 17 --- (eqn 1)

• 6x + 7y = 10 ---- (eqn 2)

[Eq 1 - Eq 2]

Therefore,

• 7x + 6y - (6x +7y) = 17 - 10

• 7x - 6x + 6y - 7y = 7

• x - y = 7

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