" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
y=4-2x
substitusi ⇒ 3x+2(4-2x) = 12
3x+8-4x=12
-x=4
x=-4 ⇒ 2x+y=4
2(-4) +y=4
-8+y=4
y = 12
grafik nanti saya foto kan
y = 4 - 2x masukan ke:
3x + 2y = 12
3x + 2(4 - 2x) = 12
3x + 8 - 4x = 12
- x = 4
x = - 4
y = 4 - 2(- 4)
= 4 + 8
= 12
Cara grafik lihat gambar