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1 vote
Super easy question

Super easy question-example-1

2 Answers

7 votes

addition. thanks for the points. /j

User Colin Murphy
by
5.5k points
6 votes

Answer: The correct answer is A. Addition

Explanation:

Let's solve for x in 2x+4y=10

Step 1: Add -4y to both sides.

2x+4y+−4y=10+−4y

2x=−4y+10

Step 2: Divide both sides by 2.

2x/2 = −4y+10/2

x = −2y +5

Now let's solve for x in 5x+4y = -12

Step 1: Add -4y to both sides.

5x+4y+−4y=−12+−4y

5x=−4y−12

Step 2: Divide both sides by 5.

5x/5 = −4y−12/5

x = −4/5y + −12/5

Here is what solving for Y looks like

Let's solve for y in 2x+4y=10

Step 1: Add -2x to both sides.

2x+4y+−2x=10+−2x

4y=−2x+10

Step 2: Divide both sides by 4.

4y/4 = −2x+10/4

y = −1/2x + 5/2

Now let's solve for y in 5x+4y = -12

Step 1: Add -5x to both sides.

5x+4y+−5x=−12+−5x

4y=−5x−12

Step 2: Divide both sides by 4.

4y/4 = −5x−12/4

y = −5/4 x−3

User DoiT International
by
5.4k points