Question

x + 80 = 70 +  90

Answer 1

mình k bạn rồi , k mình đi

Answer 2

x + 80 = 70 + 90

x + 80 = 160

x         = 160 - 80

x         = 80

Answer 3

= 80 nhé bạn

Answer 4

x + 80 = 70 + 90

x + 80 = 160

       x  = 160 - 80

       x  = 80

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Answer 5

x + 80 = 70 + 90

x + 80 = 160

       x = 160 - 80

       x = 80

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Answer 6

X+80=70+90

X+80=160

X=160-80

X=80

Vậy =80

Answer 7

x+80=70+90

x+80=160

x     =160-80

x     =80

Answer 8

x + 80 = 70 + 90

x + 80 = 160

x = 160 - 80

x = 80

Answer 9

x+80=160

x=160-80

x=80