Question

If the fraction 391/x-10 is equivalent to -23, find the value of x

Answer 1

x = - 7

multiply both sides by (x - 10) to eliminate the fraction

391 = - 23(x - 10 ) ← ( distribute parenthesis )

391 = - 23x + 230 ← ( subtract 230 from both sides )

161 = - 23x ← ( divide both sides by - 23 )

`(161)/(- 23)` = x

- 7 = x ⇒ x = - 7

Answer 2

x equals -7 is answer