Question

\(\) (1\2-x):1và1/3+1\2=-4

Answer 1

(1/2 - x) : 1 và 1/3 + 1/2 = -4

(1/2 - x) : 4/3 + 1/2 = -4

(1/2 - x) : 4/3 = -4 - 1/2

(1/2 - x) : 4/3 = -9/2

(1/2 - x) = (-9/2) * (4/3)

(1/2 - x) = -6

-x = -6 - 1/2

-x = -13/2

x = 13/2

Vậy x = 13/2 .

Answer 2

(2 - x).(-35) = 1.6

35x - 70 = 6

35x = 6 + 70

35x = 76

  

Answer 3

(1/2-x):1 và 1/3+1/2=-4

=>(1/2-x):4/3+1/2=-4

=>(1/2-x):4/3=-4-1/2

=>(1/2-x):4/3=-9/2

=>(1/2-x)=(-9/2) *4/3

=>(1/2-x)=-6

=>x=1/2-(-6)

=>x=13/2

Vậy x=13/2

Answer 4

\(\left(\frac12-x\right):1\frac13+\frac12=-4\)

\(\left(\frac12-x\right):\frac43+\frac12=-\frac82\)

\(\left(\frac12-x\right):\frac43=-\frac82-\frac12\)

\(\left(\frac12-x\right):\frac43=-\frac92\)

\(\frac12-x=-\frac92\cdot\frac43\)

\(\frac12-x=-6\)

\(\frac12-x=-\frac{12}{2}\)

\(x=\frac12-\left(-\frac{12}{2}\right)\)

\(x=\frac12+\frac{12}{2}\)

\(x=\frac{13}{2}\)

Vậy \(x=\frac{13}{2}\)

Answer 5

`1/(2-x) : 1 1/3 + 1/2 = -4`

`ĐKXĐ : x≠2`

`=> 1(2-x) : 4/3 = -4-1/2`

`=> 1/(2-x) :4/3 = (-8)/2 - 1/2`

`=> 1/(2-x) :4/3 = -9/2`

`=> 1/(2-x) = (-9)/2 xx 4/3`

`=> 1/(2-x) = -6`

`=> 2-x = 1 : (-6)`

`=> 2-x = -1/6`

`=> x = 2 - (-1/6) = 2 + 1/6 = 13/6`(thỏa mãn ĐKXĐ)

Vậy `x = 13/6`