Respuesta :

xKelvin

Answer:

[tex]x=8[/tex]

Step-by-step explanation:

So we have the equation:

[tex]x+4+x=20[/tex]

And we want to solve for x.

First, combine like terms on the left side:

[tex]2x+4=20[/tex]

Subtract 4 from both sides:

[tex](2x+4)-4=(20)-4[/tex]

The left side cancels. Subtract on the right:

[tex]2x=16[/tex]

Divide both sides by 2. The left side cancels again:

[tex]x=8[/tex]

So, the value of x is 8.

And we're done!

TheAnimeGirl

Answer:

[tex] \boxed{ \bold{ \huge{\boxed{ \sf{x = 8}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{x + 4 + x = 20}[/tex]

Collect like terms

[tex] \longrightarrow{ \sf{2x + 4 = 20}}[/tex]

Move 4 to right hand side and change it's sign

[tex] \longrightarrow{ \sf{2x = 20 - 4}}[/tex]

Subtract 4 from 20

[tex] \longrightarrow{ \sf{2x = 16}}[/tex]

Divide both sides by 2

[tex] \longrightarrow{ \sf{ \frac{2x}{2} = \frac{16}{2} }}[/tex]

Calculate

[tex] \longrightarrow{ \sf{x = 8}}[/tex]

Hope I helped!

Best regards! :D

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