x+100=300+400
500 + x = 100 + 500
300 - x = 300 + 200
400 - x = 200 + 400
500 + x = 100 + 500
500 + x = 600
x = 600 - 500
x = 1001
300 - x = 300 + 200
300 - x = 500
x = 300 - 500
x = -200
400 - x = 200 + 400
400 - x = 600
x = 400 - 600
x = -200
k mk nha mk k l
ại ^_^
500 + 100 = 100 + 500
300 + 200 = 300 + 200
400 + 200 = 200 + 400
500+x=100+500
vay x =100
300-x=300+200
vay x= - 200
400-x=200+400
vay x= -200
x+100=200-300
x-300=400-500
x + 100 = 200 - 300
x + 100 = - 100
x = 100 - 100
x = 0
x - 300 = 400 - 500
x - 300 = -100
x = -100 + 300
x = 200
k mik mik k lại
x + 100 = 200 - 300
x + 100 = -100
x = -100 - 100
x = -200
x - 300 = 400 - 500
x - 300 = -100
x = -100 + 300
x = 200
b) 200 x 4 = ...... 300 x 2 = ......
200 x 2 = ...... 300 x 3 = ......
400 x 2 = ...... 500 x 1 = ......
100 x 4 = ...... 100 x 3 = ......
b) 200 x 4 = .800..... 300 x 2 = ..600....
200 x 2 = .400..... 300 x 3 = ...900...
400 x 2 = ...800... 500 x 1 = ..500....
100 x 4 = ..400.... 100 x 3 = .300.....
x-300=400-100-100
x - 300 = 400 - 100 - 100
x - 300 = 200
x = 200 + 300
x = 500.
x+100=200-300-300+400
x + 100 = 200 - 300 - 300 + 400
x + 100 = -100 - 300 + 400
x + 100 = -400 + 400
x + 100 = 400 - 400
x + 100 = 0
x = 0 - 100
x = -100
x+100=200-300-300+400
x+100=0
x=0-100
x=-100
a) x + 300 = 400 - 100
b) x + 600 = 400 + 600
Tìm x
a) x + 300 = 400 - 100
x + 300 = 300
x = 300 - 300
x = 0
b) x - 600 = 400 + 600
x - 600 = 1000
x = 1000 - 600
x = 400
๖ۣۜ♥♥♥♥๖ۣۜ ๖ۣۜ♥♥♥♥๖ۣۜ ๖ۣۜ♥♥♥♥๖ۣۜ ๖ۣۜ♥♥♥♥๖ۣۜ ๖ۣۜ♥♥♥♥๖ۣۜ Cố gắng lên 3000 điểm hỏi đáp để trở thanh CTV , mọi người ủng hộ nha
a) x + 300 = 400 - 100
x + 300 = 300
x = 300 - 300
x = 0
b) x - 600 = 400 + 600
x - 600 = 1000
x = 1000 - 600
x = 400
x+300=400-100
x+300=300
x=300-300
x=0
x-600=400+600
x-600=1000
x=1000+600
x=1600
x-100=200+900
x+100=300-400
x - 100 = 200 + 900
x - 100 = 1100
x = 1100 + 100
x = 1200
x + 100 = 300 - 400
x + 100 = - 100
x = - 100 - 100
x = - 200
x+100=200+900
x+100=1000
x=1000-100
x=900
x+100=300-400
x+100=-100
x=-100-100
x=-200
X-100=200+900
X-100=1100
X =1100+100
X =1200
x+100=300+400
x + 100 = 300 + 400
x + 100 = 700
x = 700 - 100
x = 600
Vậy x = 600
x + 100 = 300 + 400
x + 100 = 700
x = 700 - 100
x = 600
x+100=300-400
x+100=300-400
x + 100 = -100
x = -100 - 100
x = -200
x+100=300-400
x+100=-100
x =-100-100
x =-200
X+100=300-400
X+100=-100
X=(-100)-100
X=-200
VẬY X=-200
NHỚ TK CHO MÌNH NHA