Answer:
Step-by-step explanation:
=
Yes and no. It depends on the situation and how you're asking
Use order of operations or PEMDAS
this is order of simplification
work from left to right
Parentahsees (grouping symbols)
Exponents
multiplication or division
addition or subtraction
so
replace a with 1, b=2 and c with -8
now exponents
multiply and divide, working from left to right (remember, division is multiplication by a fraction)
addition and subtraction
(r+5 )/3=9
(r+5)/3 × 3 = 9 × 3
r+5 = 27
r + 5 -5 =27- 5
r= 22