X = 2Y + 9 X + 5Y = -5

Question

Matematika Diposting : 2017-11-19 Diupdate : 2022-08-30 Iskandar271

Pertanyaan

X = 2Y + 9
X + 5Y = -5

Answer 1

x = 2y + 9
x + 5y = - 5

x + 5y = - 5
2y + 9 + 5y = - 5
7y = - 5 - 9
7y = - 14
y = - 14/7
y = - 2

x = 2y + 9
x = - 4 + 9
x = 5

Maaf Kalau Salah

Answer 2

X-2y=9
X+5y=-5
_______ -
-7y=14
y=-2

X-2y=9
X+4=9
X=5

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