Question 8(multiple choice worth 1 points) (04.03 lc) given the following system of equations:
−4x + 8y = 16
2x + 4y = 32
what action was completed to create this new equivalent system of equations? −2x + 4y = 8
2x + 4y = 32
a) divide the second equation, 2x + 4y = 32, by 2.
b) divide the first equation, −4x + 8y = 16, by 2.
c) multiply the second equation, 2x + 4y = 32, by −1.
d) multiply the first equation, −4x + 8y = 16, by −1.

Option B) Divide the first equation, −4x + 8y = 16, by 2

Step-by-step explanation:

we have

----> First equation

----> Second equation

Divide the first equation by 2 both sides

so

apply distributive property left side

The new equivalent system is

---> first equation divided by 2

---> is the same second equation

therefore

Option B

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.