C.1/3x+-2/3x+-3/15=4/5x-1 D.(3x/7+1):(-4)=1/28
B.1/3:x-20%=16/-32 A. -1.1/2-x=2.5
C.1/3x+-2/3x+-3/15=4/5x-1 D.(3x/7+1):(-4)=1/28 B.1/3:x-20%=16/-32 A. -1.1/2-x=2.5
By Kylie
By Kylie
C.1/3x+-2/3x+-3/15=4/5x-1 D.(3x/7+1):(-4)=1/28
B.1/3:x-20%=16/-32 A. -1.1/2-x=2.5
B:
1/3:x-2%=16/-32
1/3:x-2/100=-16/32
1/3:x=-16/32+1/50
1/3:x= 400/800+16/800
1/3:x=416/800
1/3:x=13/25
x= 1/3:13/25
x=1/3*25/13
x= 25/39
x=
Đáp án:
B, 1/3:x-20%=16/-32
1/3:x-1/5 = 16/-23
1/3:x =16/-23+-1/5
1/3:x = -15/23
x = -45/23
A, -1.1/2-x=2,5
1/2-x=2,5:-1
1/2-x= -25
x= -25-1/2
x=-51/2