Solve the simultaneous equations
8x + 3y = 45
2x + 3y = 27

Question

02-02-2021
Mathematics

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Solve the simultaneous equations
8x + 3y = 45
2x + 3y = 27

Respuesta :

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kirabowen15 kirabowen15 · Answer 1 · 2021-02-02T12:08:54+01:00

kirabowen15 kirabowen15

02-02-2021

8x + 3y = 45 * -2
2x + 3y = 27 * 8

-16x - 6y = 90
16x + 24y = 216

24y = 216
y = 216/24
y = 9

8x + 3y = 45
8x + 3(9) = 45

8x + 27 = 45
8x = 45 - 27
8x = 18
x = 18/8
x = 2.25

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Solve the simultaneous equations 8x + 3y = 45 2x + 3y = 27

Respuesta :

Otras preguntas

Solve the simultaneous equations
8x + 3y = 45
2x + 3y = 27