2×(x-1)-5(x+2)=-10
2x - 2 -5x -10 =-10
-3x -12 = -10
-3x = -10 + 12
-3x = 2
x= -2/3
Đúng 2
Bình luận (1)
2×(x-1)-5(x+2)=-10
2x - 2 -5x -10 =-10
-3x -12 = -10
-3x = -10 + 12
-3x = 2
x= -2/3