Answer:
37/12
Step-by-step explanation:
Convert to improper fraction
11/12 + 13/6
Find common denominator
11/12 + 13/6 x 2/2
11/12 + (13x2)/12
Combine numerators
(11+13x2)/12
simplify numerator
37/12
(21,22) I solved by substitution
Answer:
3
Step-by-step explanation:
x+10=13
x+10-10=13-10
Simplfiy
x=3