Respuesta :

Answer=

= − 3 ± [tex]\sqrt{}69[/tex]

Step-by-step explanation:

Combine multiplied terms into a single fraction

Combine exponents

Multiply all terms by the same value to eliminate fraction denominators

Simplify

Move terms to the left side

Answer:

6

Step-by-step explanation:

you combine the Xś for an equation of 5x-9=21 then you add 9 to the minus 9 and the 21 to get 5x=30 you then divide 5 on each side to get x=6