Answer:
12
Step-by-step explanation:
Her dog is 6 years old
x+25+x=37
(x+x)+25=37
2x+25=37
2x+25-25=37-25
2x=12
[tex]\frac{2x}{2}[/tex]=[tex]\frac{12}{2}[/tex]
x=6
Her dog is six years old. Hope this helps!
