Question

Tell whether the value is a solution of the
- 5 = QS)-1; S = 10

Answer 1

S=−
`(4)/(Q)`

Explanation:

−5=(QS)−1

Swap sides so that all variable terms are on the left hand side.

QS−1=−5

Add 1 to both sides.

QS=−5+1

Add −5 and 1 to get −4.

QS=−4

Divide both sides by Q.

`(QS)/(Q)`=
`(-4)/(Q)`

Dividing by Q undoes the multiplication by Q.

S=
`(-4)/(Q)`

Divide −4 by Q.

S=−
`(4)/(Q)`

​