Answer:
16
Step-by-step explanation:
(9+b)+7
Putting parentheses separates the expression.
Answer:21?
2(5) + 3 = 13
x=5
y=3
2x+y=13
2(5)+3=13
10 +3 =13
(a+3)(a-2)
Multiply the two brackets together
a^2-2a+3a+3*-2
a^2+a-6
Answer is a^2+a-6
