a) x + 100 = 50 + 60

x + 100 = 110

x = 110 - 100

x = 10

b) x + 50 = 30 + 60

x + 50 = 90

x = 90 - 50

x = 40

_______________________________________________THE END_____________________________________________________

a)=10

b)40 

tk m nhé

100 - x = 50

         x = 100 - 50 

         x  = 50

100-x=50

=> x= 100 -50

=> x=50

Tick nhé 

Tìm x :

x + 100 = 50 + 150 

x + 100 = 200

x = 200 - 100

x = 100

Vậy x = 100

x + 100 = 50 + 150

x + 100 = 200

x          = 200 -100

x           = 100

Đúng 100 %

a)X=100

b)X=70

K MKNHA BN

x + 20 - 10 = 110

x + 20 = 110 + 10

x + 20 = 120

x = 120 - 20

x = 100

x + 80 - 50 = 100

x + 80 = 100 + 50

x + 80 = 150

x = 150 - 80

x = 70

a) x +60+40 =400

   x             = 400-40-60

   x             =300

b) (x+25) + 50 = 100:2 +30

(x+25) +50     = 50+30=80

x+25             = 80-50=30

x                   =30-25

x                  = 5

a.x+60+40=200

x+100=200

x=200-100

x=100

b.x+25+50=100:2+30

x+75=50+30

x+75=80

x=80-75

x=5

mk nhanh nhất

50 nhé k mik nha mik k lại 

Ta có 

 x + 50 = 100 

 =) x = 100 - 50 

=) x = 50 

Ai k mình mình k lại nhé =)))

a,30 + x = 50

 x=50 - 30 

 x = 20

b, 100 - x = 90

x = 100 - 90

x = 10

^^

a, 30 + x = 50

x = 50 - 30= 20

b, 100 -  x = 50

x = 100 - 50 = 50

a) 126 x 4 + 126 x 5 + 126

= 126 x 4 + 126 x 5 + 126 x 1

= 126 x ( 4 + 5 + 1 )

= 126 x 10

= 1260

b) 184 x 100 - 50 x 100

= ( 184 - 50 ) x 100

= 134 x 100

= 13400

\(x+50=100+50\)

\(x+50=150\)

           \(x=150-50\)

           \(x=100\)

x + 50 = 100 + 50

x + 50 = 150

x        = 150 - 50

x         = 100