Question

please solve this question ​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

$\sf{\bold{\green{\underline{\underline{Correct \: question }}}}}$

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• Solve the given equation simultaneously .

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x + 3y = - 10

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x - 2y = 10

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$\sf{\bold{\green{\underline{\underline{Given}}}}}$

• x + 3y = - 10 --- ( i )
• x - 2y = 10 --- ( ii )

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$\sf{\bold{\green{\underline{\underline{To\:Find}}}}}$

• Value of x and y

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$\sf{\bold{\green{\underline{\underline{Solution}}}}}$

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• Subtracting equation ( ii ) from ( i )

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x + 3y - ( x - 2y ) = - 10 - 10

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x + 3y - x + 2y = - 10 - 10

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3y + 2y = - 10 - 10

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5y = - 10 - 10

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5y = - 20

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y = - 20 / 5

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y = - 4

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$\sf{\star{\boxed{\mathfrak{\orange{ y \: = \: -4 }}}}}$

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• Putting value of y in eq ( i )

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x + 3y = - 10

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x + 3 × - 4 = - 10

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x + ( - 12 ) = - 10

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x - 12 = - 10

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x = -10 + 12

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x = 2

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$\sf{\star{\boxed{\mathfrak{\orange{ x \: = \: 2 }}}}}$

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$\sf{\bold{\green{\underline{\underline{Answer}}}}}$

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• Value of x = 2

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• Value of y = - 4