(A)
Solve for the first variable in one of the equations, then substitute the result into the other equation.
v=3
w=−7
(B)
Solve for the first variable in one of the equations, then substitute the result into the other equation.
t=11/6
u=1/9
Answer:B-A
Step-by-step explanation:
<h3>
Answer:</h3>
c=34
<h3>
Step-by-step explanation:</h3>
So, our starting equation is: -(14 – 9c) = 4(2c + 5)
and this is how we can solve it:
We move all terms to the left:
-(14-9c)-(4(2c+5))=0
We add all the numbers together, and all the variables
-(-9c+14)-(4(2c+5))=0
We get rid of parentheses
9c-(4(2c+5))-14=0
We calculate terms in parentheses: -(4(2c+5)), so:
4(2c+5)
We multiply parentheses:
8c+20
Back to the equation:
-(8c+20)
We get rid of parentheses:
9c-8c-20-14=0
We add all the numbers together, and all the variables:
c-34=0
We move all terms containing c to the left, and all other terms to the right:
c=34
I know it looks complicated but I do hope this helps! :)
16 of his stamps are from Africa, since 1/4 of 64 is 16. If I subtract his 28 from Europe and Africa (16 plus 12 equals 28) from his original 64, I am left with 36 stamps. 36/64 is simplified to 9/16. So 9/16 of Terrence's stamps are from Asia.
3. If you look at the problem and count 1 past the comma, that is the thousands place.