(x6.45) + 56 = 365 (x3.23) – 43 = 35 nhanh giúp em ạ please

2 bình luận về “(x6.45) + 56 = 365 (x3.23) – 43 = 35 nhanh giúp em ạ please”

1. (6x.45)+56=365

   => 6x.45=365-56

   => 6x.45=309

   => x = 309:270

   => x = 103/90

   ——–

   (x3.23) – 43 = 35

   => 69x = 35+43

   => 69x = 78

   => x = 78:69

   => x = 26/23

    

   Trả lời
2. $\boxed{\color{green}{\text{nghĩa}}}$

   $\text{( x6 × 45 ) + 56 = 365}$

   $\text{⇒ x6 × 45  = 365 – 56}$

   $\text{⇒ x6 × 45  = 309}$

   $\text{⇒ x6 = 309 : 45}$

   $\text{⇒ x6 = $\frac{309}{45}$ }$

   $\text{⇒ x = $\frac{309}{45}$  : 6 }$

   $\text{⇒ x =$\frac{103}{90}$ }$

   $\text{_____________________________________}$

   $\text{( x3 × 23 ) – 43 = 35 }$

   $\text{⇒ x3 × 23 = 35 + 43 }$

   ⇒ x3 × 23 = 78 

   ⇒ x3 = 78 : 23 

   ⇒ x3 = $\frac{78}{23}$

   ⇒ x = $\frac{78}{23}$  :3

   ⇒ x =$\frac{26}{23}$

   Trả lời