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X + 126 = 480
\(\Rightarrow\)X = 480 - 126 = 354
X - 209 = 435
\(\Rightarrow\)X = 435 + 209 = 644
![](https://rs.olm.vn/images/avt/0.png?1311)
\(x\times405=86265\)
\(x=86265:405\)
\(x\text{=}213\)
\(89658:x=293\)
\(x=89658:293\)
\(x\text{=}306\)
\(x+126=480\)
\(x=480-126\)
\(x=354\)
\(x-209\text{=}435\)
\(x\text{=}435+209\)
\(x\text{=}644\)
\(x:13=200+5\)
\(x:13\text{=}205\)
\(x\text{=}205\times13\)
\(x\text{=}2665\)
\(x\times40\text{=}26000-400\)
\(x\times40=25600\)
\(x\text{=}25600:40\)
\(x\text{=}640\)
\(962456-x=342\times7\)
\(962456-x=2394\)
\(x\text{=}962456-2394\)
\(x\text{=}960062\)
![](https://rs.olm.vn/images/avt/0.png?1311)
x + 126 = 480
x = 480 - 126
x = 354
Nhớ tick cho mik nha !!!
![](https://rs.olm.vn/images/avt/0.png?1311)
y + 126 = 480 x 12
y + 126 = 5760
y = 5760 - 126
y = 5634
Các bạn ủng hộ cho mik nha !!!
![](https://rs.olm.vn/images/avt/0.png?1311)
a: x= 480 - 126
x = 354
b: x - 209 =435
x = 435 + 209
x = 644
ĐÁP SỐ: A=354, B=644
?????????????
a ) x = 480 - 126
x = 354
b ) x = 435 + 209
x = 644
![](https://rs.olm.vn/images/avt/0.png?1311)
360 : x - 126 : x = 6
(360 - 126) : x = 6
234 : x =6
x = 234 :6
x = 39
x = 354