Answered

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Solve the system of equations:

4x-5y=21
3x+10y= -53

Sagot :

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Step-by-step explanation:

2× (4x-5y) = 21

3x+10y= -53

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8x-10y = 42

3x+10y=-53

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11x= -11

{x=-1}

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3x+10y=-53

x=-1

3(-1)+10y=-53

-3+10y=-53

10y= -50

{y=5}

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