isagon9333 isagon9333

24-03-2022
Mathematics

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8x+5y=-13, 3x+4y=10 solve by elimination

Respuesta :

isalep93 isalep93

24-03-2022

8x+5y=-13

3x+4y=10

*4 on top

*5 on buttom

32x + 20y = - 52

15x + 20y = 50

subtraction

32x - 15x = - 52 - 50

17x = - 102

x = - 6

and then

3 * (-6) + 4y = 10

4y = 28

y = 7

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