Respuesta :

thisbeanotheremail

Isolate x by subtracting 12 on both sides to get x=3. You can plug it in to check. Hopefully I helped. :)

CharlieBrown2002

Hello there! :)

Answer:

z=3

*The answer must have a positive sign.*

Step-by-step explanation:

First, switch sides of an equation.

[tex]z+12=15[/tex]

Then, you subtract by 12 from both sides of an equation.

[tex]z+12-12=15-12[/tex]

And finally, simplify and solve. You can also subtract by the numbers.

[tex]15-12=3[/tex]

[tex]12+3=15[/tex]

[tex]15-3=12[/tex]

[tex]3+12=15[/tex]

Answer: [tex]z=3[/tex]

Hope this helps!

Thanks!

-Charlie

Have a great day!

:)

:D

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