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Serjik [45]
3 years ago
7

Solve negative 5 over 2, the whole multiplied by x minus 5 equals negative 55.

Mathematics
2 answers:
jasenka [17]3 years ago
8 0

Answer:

Option C.

Step-by-step explanation:

The given equation is

-\dfrac{5}{2}(x)-5=-55

We need to find the value of x.

Add 5 on both sides.

-\dfrac{5}{2}(x)-5+5=-55+5

-\dfrac{5}{2}(x)=-50

Multiply both sides by 2.

-5x=-100

Divide both sides by -5.

x=\dfrac{-100}{-5}

x=20

Therefore, the correct option is C.

astraxan [27]3 years ago
5 0

Answer:

-24

Step-by-step explanation:

-  \frac{5}{2} x \:  - 5 = 55

Multiply through by the denominator (that is, 2)

= 2 \times ( -  \frac{5}{2} x) \:  - 5(2) = 55(2)

=  - 5x - 10 = 110

Collect like terms

- 5x \:  = 110 +10

- 5x = 120

Divide through by - 5x

\frac{ - 5x}{ - 5}  =  \frac{120}{ - 5}

x =  - 24

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