a, 441 + (218 - x) = 635
<=> 441 + 218 - x = 635
<=> 659 - x = 635
=> x = 24
b, 195 - 3(x + 1) = 45
<=> 195 - 3x - 3 = 45
<=> -3x = 45 -195 + 3
<=> -3x = -147
=> x = 49
c, x - 37 - (110) = 0
<=> x - 37 -110 = 0
<=> x = 110 + 37
=> x = 147
d, (x - 36) : 15 = 15
<=> x - 36 = 15 x 15
<=> x - 36 = 225
<=> x = 225 + 36
=> x = 261
e, 2x = 32
=> x = 5
f, x50 = x
=> x = 1
Bài làm
a, 441 + ( 218 - x ) = 635
=> 441 + 218 - x = 635
=> 659 - x = 635
=> x = 659 - 635
=> x = 24
Vậy x = 24
b,195 - 3( x + 1 ) = 45
=> 195 - 3x - 3 = 45
=> 3x - 3 = 195 - 45
=> 3x - 3 = 150
=> 3x = 153
=> x = 51
Vậy x = 51
c, ( x - 37 ) - 110 = 0
=> x - 37 = 110
=> x = 110 + 37
=> x = 147
Vậy x = 147
d, ( x - 36 ) : 15 = 15
=> x - 36 = 225
=> x = 225 + 36
=> x = 261
Vậy x = 261
e, 2x = 32
Ta có: 32 = 25
=> 2x = 25
=> x = 5
Vậy x = 5
f, x50 = x
<=> x = 1 hoặc x = 0
Vậy x = 1 hoặc x = 0
# Học tốt #
a,441+(218-x)=635
218-x =635-441
218-x =194
x =218-194
x =24
Vậy x =24
b,195-3(x+1)=45
3(x+1)=195-45
3(x+1)=150
x+1 =150:3
x+1 =50
x =50-1
x =49
Vậy x=49
c,(x-37)-110=0
x-37=110
x=110+37
x=147
Vậy x=147
d,(x-36):15=15
x-36=15.15
x-36=225
x=225+36
x=261
Vậy x=261
e,2x=32
2x=25
x=5
Vậy x=5
f,x50=x
Vô lí vì 50 ko bằng 1
Vậy x E O
a) 441 + (218 - x)= 635
441 + 218 - x = 635
x= 441 + 218 - 635
x= 24
b)195 - 3(x -1) = 45
3x - 3 = 195 - 45
3x - 3= 150
3x = 150 +3
3x = 153
x=51
c)(x-37) -110 = 0
x - 37 = 110
x = 110 +37
x = 147
d) (x-36) : 15 =15
x-36 = 15.15
x-36=225
x=225 +36
x=261
e) 2x = 32
2x = 25
x=5
a/441+(218-x)=635
=>441+218-x =635
=>659-x=635
=> x=659-635
=> x=24
b/195-3(x+1)=45
=>3(x+1)=195-45
=>3(x+1)=150
=> x+1=150:3
=> x+1=50
=> x=50-1
=> x=49
c/(x-37)-110=0
=>x-37=0+110
=>x-37=110
=> x=110+37
=> x=147
d/(x-36):15=15
=>x-36=15.15
=>x-36=225
=> x=225+36
=> x=261
e/2x=32
=>2x=25
=> x=5
f/x50=x
=>x50-x=0
=>x.x49-x=0
=>x.(x49-1)=0
=>x=0 hoặc x49-1=0
=>x=0 hoặc x49=1
=>x=0 hoặc x=1