Answer:
A. a = 2s - b -c
Step-by-step explanation:
Rearrange the equation in a way that you have only a on one side. When solving equations you can add, subtract, multiply or divide by the same number/variable/expression on the both sides.

Multiply by 2 to get rid of the fraction.

On the right side the 2 cancels out:

On the right side next to a are still b and c. But we want a alone. Subtract b.

b - b on right side gives 0.

The step above is usually skipped, because number + 0 = number.

Next to a there is still c. Subtract c.

c - c on the left is 0.

So our answer is:

It can be rewritten to (change sides):

And s · 2 can be rewritten to 2s:

Answer:
exuse me but i dont see the questions
Step-by-step explanation:
Hi there...
6 - y + 5y - 6y
Let's combine the like terms
(6)+(-y+5y-6y)
(6)+(-y-y)
(6)+(-2y)
6 - 2y
I hope that's help !
Complete question :
Jenna’s method: Mia’s method: 5(30 + 4) 5(30 + 4) (5)(30) + (5)(4) 5(34) = 170 150 + 20 = 170 Explain why both Jenna and Mia arrived at the same answer and the advantage of one method over the other.
Answer:
Kindly check explanation
Step-by-step explanation:
Jenna's method :
5(30 + 4) = 5(34) = 170
Mia’s method :
5(30 + 4) :
5(30) + 5(4)
150 + 20
= 170
With both methods, we will arrive at the same answer as justified in the workings above. However, Jenna's method gives a very simple approach and less complicated arithmetic by using the distributive property to overrode some multiplication process which Mia went through in her own calculation. Therefore, Jenna's method is less complicated and requires two simple steps at obtaining the final result.