Respuesta :

Step-by-step explanation:

[tex]25 = 9x + 4 - 6x[/tex]

[tex]25 - 4 = 9x - 6x \\ [/tex]

[tex]21 = 3x[/tex]

[tex] \frac{21}{3} = x[/tex]

[tex]7 = x[/tex]

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{x = 7}}}}}[/tex]

Step-by-step explanation:

[tex] \star{ \tt{ \: 25 = 9x + 4 - 6x}}[/tex]

[tex] \sf{Step \: 1 \: }[/tex] : Collect like terms

Like terms are those which have same base

[tex] \longmapsto{ \sf{25 = 3x + 4}}[/tex]

[tex] \tt{Step \: 2 \: }[/tex] : Swap the sides of the equation

[tex] \longmapsto{ \sf{3x + 4 = 25}}[/tex]

[tex] \tt{Step \: 3 \: }[/tex] : Move 4 to right hand side and change it's sign

[tex] \longmapsto{ \sf{3x = 25 - 4}}[/tex]

[tex] \tt{Step \: 4}[/tex] : Subtract 4 from 25

[tex] \longmapsto{ \sf{3x = 21}}[/tex]

[tex] \tt{Step \: 5}[/tex] : Divide both sides by 3

[tex] \longmapsto{ \sf{ \frac{3x}{3} = \frac{21}{3}}} [/tex]

[tex] \tt{Step \: 6}[/tex] : Calculate

[tex] \longmapsto{ \sf{x = 7}}[/tex]

The value of x is 7

Hope I helped!

Best regards! :D

~TheAnimeGirl