Question

Which equation has the solution x = 9? Select each correct answer. A. 2x−3=15

B.81x−3=6
C.24−2x=13
D.3x + 2 = 25
E x3+7=8
F.4 + 5x = 18

Answer 1

A)


`2x-3=15\\\\2x=18\quad|:2\\\\\boxed{x=9}\qquad\checkmark`

B)


`81x-3=6 \\\\81x=9\quad|:81\\\\\boxed{x=(1)/(9)}`

C)


`24-2x=13 \\\\-2x=-11\quad|:(-2)\\\\\boxed{x=(11)/(2)}`

D)


`3x + 2 = 25 \\\\3x=23\quad|:3\\\\\boxed{x=(23)/(3)}`

E)


`x^3+7=8 \\\\x^3=1\\\\\boxed{x=1}`

F)


`4 + 5x = 18\\\\5x=14\quad|:5\\\\\boxed{x=(14)/(5)}`

Only answer A) is correct.

Answer 2

I believe the answer would be D