(x-135)x5:3=310

  (x-135)x5=310x3

  (x-135)x5=930

       x-135 = 930:5

       x-135= 186

             x= 186+135

             x=321

Vậy x=321 

Đúng thì tick nha 

(x-135)x5:3=310

=> (x-135)x5=310x3=930

x-135=930:5=186

=>x=186+135=321

310*3/5+135=321

đơn giản như đang giởn

5 mũ 56,nha bạn

kết quả là 5 ^ ⁵⁶

a,234.4+234.5+234=234(4+5+1)=234.10=2340

b,135.16-135.2-135.4=135(16-4-2)=135.10=1350

c,1/2+1/4+1/8+1/16+1/32+1/64=1-1/2+1/2-1/4+1/4-1/8+1/8-1/16+1/16-1/32=1-1/32=31/32

a) 234 x4 + 234 x 5 + 234 = 234 x ( 1+4+5)=2340

b)135 x16 -135 x2 -4 x135 =135 x (16-2-4) =1350

a) 234.(4+5+1)=234.10=2340

b)135.(16-2-4)=135.10=1350

= 3/4 + 1/3 = 13/12

5/4 x X = 5/8

X = 5/8 : 5/4

X = 1/2

vậy X = ...

\(\dfrac{3}{5}:\dfrac{4}{5}+\dfrac{1}{2}\times\dfrac{2}{3}=\dfrac{3}{4}+\dfrac{1}{3}+\dfrac{9}{12}+\dfrac{4}{12}=\dfrac{11}{12}\)

\(\dfrac{5}{4}\times x=\dfrac{5}{8}\)

\(x=\dfrac{5}{8}:\dfrac{5}{4}\)

\(x=\dfrac{1}{2}\)

Tính giá trị biểu thức
   \(\dfrac{3}{5}:\dfrac{4}{5}+\dfrac{1}{2}x\dfrac{2}{3}=\dfrac{3}{5}x\dfrac{5}{4}+\dfrac{1}{3}=\dfrac{3}{4}+\dfrac{1}{3}=\dfrac{9+4}{12}=\dfrac{13}{12}\)  

Tìm x
    \(\dfrac{5}{4}\)xX=\(\dfrac{3}{8}+\dfrac{1}{4}\)
    \(\dfrac{5}{4}\)xX=\(\dfrac{5}{8}\)
    x=\(\dfrac{5}{8}\) :\(\dfrac{5}{4}\)
    x=\(\dfrac{1}{2}\)

\(\left(x-\dfrac{1}{2}\right)\times\dfrac{5}{3}=\dfrac{7}{4}-\dfrac{1}{2}\)

\(\left(x-\dfrac{1}{2}\right)\times\dfrac{5}{3}=\dfrac{5}{4}\)

\(x-\dfrac{1}{2}=\dfrac{5}{4}:\dfrac{5}{3}\)

\(x-\dfrac{1}{2}=\dfrac{3}{4}\)

\(x=\dfrac{3}{4}+\dfrac{1}{2}\)

\(x=\dfrac{5}{4}\)

(x-1/2)x5/3=7/4-1/2

(x-1/2)x5/3=5/4

x-1/2 =5/4:5/3

x-1/2=3/4

x=1/2+3/4

x=5/4

Bài này....

Bài này làm sao

Bài này ..

ko bt làm =D

.... ~~