Question

Tìm x biết: x*7+x*9-x-x*5=790

Answer 1

Kb vs mk đi

Answer 2

* là gì zây Bạn trai vi diệu

Answer 3

X x ( 7 + 9 + - 1 - 5) = 790

X = 790 : 10

..................

Answer 4

x * 7+ x *9 -x-x *5=790

x*7+x*9-x*1-x*5=790

x*(7+9-1-5)=790

x*10=790

x=790:10

x=79

Answer 5

x*7 + x*9 - x*1 - x*5=790

x*{7+9-1-5}=790

x*10=790

x=790:10

x=79

k cho mình nha