Diketahui -5x + 7 = 2x + 77, nilai dari x + 8 adalah

-5x + 7 = 2x + 77
-5x - 2x = 77 - 7
- 7x = 70
x = -10

maka, x+8 = -10+8 = -2

semoga membantu
ㅡ :)

-5x + 7 = 2x + 77
-5x -2x = 77-7
-7x = 70
x = -10

x + 8 = -10 + 8 = -2