What we know:
(Also, 
)
What we need to solve:
(This is equal to 
)
How you have to subtract 
with 
to get:
Thus, the answer would be:
Answer:
b=7
Step-by-step explanation:
Plug 3 into a since a=3.
2(3)+b=13
Then solve for 2(3)
6+b=13
Now isolate the b, so move the 6 to the other side. (Basically subtract 6 from both sides)
b=13-6
b=7
Answer:
6
Step-by-step explanation:
4/5=80%
1/8=12.5%
80÷12.5=6.4
Answer
10a mean 10 x a
Find the number when you times gives you 100,000
a= 10,000
So what you have to do first is the parentheses: 12 - 32 + 5 • 2 and next you have to do multiplication: 12 - 32 + 10 next addition: 12 - 42 = -30
PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction)
