Sederhanakan: -4(2x+y-5) -2(-3x+7y-2)

Kelas 7 Matematika
Bab Aljabar

-4(2x + y – 5) – 2(-3x + 7y – 2)
= -8x – 4y + 20 + 6x – 14y + 4
= -8x + 6x – 4y – 14y + 20 + 4
= -2x – 18y + 24

-8x-4y+20+6x-14y+4
-2x-18y+24