a) \(697:\frac{15X+364}{X}=17\)
\(\Rightarrow\frac{15X+364}{X}=697:17=41\)
\(\Rightarrow15X+364=41X\)
\(\Rightarrow364=41X-15X=26X\)
\(\Rightarrow X=14\)
A.suy ra: 15x+364/x=41
suy ra: 15x/x+364/x=41
suy ra: 15 + 364/x=41
suy ra: 364/x =26
suy ra: 364:x=26
suy ra: x= 14 (T/M)
B. 92.4-27=x+350/x+315
suy ra: 341=x/x+ 350/x +315
suy ra: 26 =1+350/x
suy ra: 25=350/x
suy ra: 350:25=x
suy ra: 14=x (T/M)
Vậy a. x=14
b. x=14
số đó là
x=14
nhé bn
mình làm
đúng ko vậy
\(a,\text{ }697\text{ : }\frac{15\cdot x+364}{x}=17\)
\(\frac{15\cdot x+364}{x}=697\text{ : }17\)
\(\frac{15\cdot x+364}{x}=41\)
\(15x+364=41x\)
\(41x-15x=364\)
\(26x=364\)
\(x=364\text{ : }26\)
\(x=14\)
A. \(697:\frac{15.X+364}{X}=17\)
\(\Leftrightarrow15+\frac{364}{X}=697:17=41\)
\(\Leftrightarrow\frac{364}{X}=41-15=26\Leftrightarrow X=364:26=14\)
B. \(92.4-27=\frac{X+350}{X}+315\)
\(\Leftrightarrow368-27=341=1+\frac{350}{X}+315\)
\(\Leftrightarrow341-315=26=1+\frac{350}{X}\)
\(\Leftrightarrow\frac{350}{X}=26-1=25\Leftrightarrow X=350:25=14.\)
