⇔13x=195

⇔x=15

565 - 13x = 370

         13x = 565 - 370 = 195

             x = 195 : 13

             x = 15

\(565-13x=370\\ 13x=195\\ x=195:13\Rightarrow x=15\)

565-13-x=370

552-x=370

x=552-370

x=182

     \(435\times16+565\times17\) 

\(=435\times16+565\times\left(16+1\right)\) 

\(=435\times16+565\times16+565\)

\(=16\times\left(435+565\right)+565\)

\(=16\times1000+565\) 

\(=16000+565\)

\(=16565\)

X:300=130

X=130×300

X=38000

Mình viết nhầm 

X=39000

\(x:300=565-435\)

\(x:300=130\)

\(x=130\times300\)

\(x=39000\)

= 25425 nha

TK MK NHA CÁC BẠN MK ĐG BỊ ÂM ĐIỂM

=25425

= 25425

a) 565 - 13.x = 370

13.x = 565 - 370

13.x = 195

x = 195 : 13

x = 15

b) 105 - (135 - 7x) : 9 = 97

(135 - 7x) : 9 = 105 - 97

(135 - 7x) : 9 = 8

135 - 7x = 8 x 9

135 - 7x = 72

7x = 135 - 72

7x = 63

x = 63 : 7

x = 9

a) 565 - 13.x = 370

13.x = 565 - 370

13.x = 195

x = 195 : 13

x = 15

b) 105 - (135 - 7x) : 9 = 97

(135 - 7x) : 9 = 105 - 97

(135 - 7x) : 9 = 8

135 - 7x = 8 x 9

135 - 7x = 72

7x = 135 - 72

7x = 63

x = 63 : 7

x = 9

cho like

a) 565 - 13.x = 370

13x = 565 - 370

13x = 195

x = 195 : 13

x = 15

b) 105 - (135 - 7x) : 9 = 97

(135 - 7x) : 9 = 105 - 97

(135 - 7x) : 9 = 8

135 - 7x = 8.9

135 - 7x = 72

7x = 135 - 72

7x = 63

x = 63 : 7

x = 9

   ( 565 + 56 + 45 ) x 63

= 666 x 63

= 41 958

( 565 + 56 + 45 ) x 63 

= 666 x 63 

= 41958

(565+56+45)x63

=666x63

=41958

\(565-13x=370\\ 13x=565-370=195\\x=\dfrac{195}{13}=15\)

\(105-\left(135-7x\right):9=97\\ \dfrac{135-7x}{9}=105-97=8\\ 135-7x=9.8=72\\ 7x=135-72=63\\ x=\dfrac{63}{7}=9\)

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con cặc :)))))))))))))