Question

7 x X - 8 = 713 

648 - 34 x X = 444

mik cần bài này gấp mn ạ 

Answer 1

\(a,7x=713+8\\ 7x=721\\ x=721:7\\ x=103\\ b,34x=648-444\\34x=204\\ x=204:34\\ x=6 \)

Answer 2

a) đề bài 
=7X=713+8

=7X=721\(x=\dfrac{721}{7}\)
=103
=

Answer 3

b) Đề bài 
=−34X=444−648
=−34X=−204
=\(x=\dfrac{-204}{-34}\)

=\(x=\dfrac{204}{34}\)
= \(x=6\)

Answer 4

cho mik sữa lại câu a
a ) đề bài 
-->7X=713+8

-->7X=721
-->\(x=\dfrac{721}{7}\)
--> x=103

Answer 5

a,7xX-8=713

=>7xX=713+8

=>7xX=721

=>X=721:7

=>X=103

b,648-34xX=444

=>34xX=204

=>X=204:34

=>X=6

Answer 6

a)7 x X - 8= 713                   b)648 - 34 x X = 44

  7 x X = 713 + 8                               34 x X = 204

  7 x X = 721                                             X = 204 : 34

         X = 721:7                                         X = 6

         X = 103