Question

please answer it step by step​

Answer 1

Step-by-step explanation:

Let's solve for x.

3x−y−7=0

Step 1: Add y to both sides.

3x−y−7+y=0+y

3x−7=y

Step 2: Add 7 to both sides.

3x−7+7=y+7

3x=y+7

Step 3: Divide both sides by 3.

3x/3=y+7/3

x=1/3y+7/3

Answer:

x=1/3y+7/3

2x + 5y + 1= 0

Let's solve for x.

2x+5y+1=0

Step 1: Add -5y to both sides.

2x+5y+1+−5y=0+−5y

2x+1=−5y

Step 2: Add -1 to both sides.

2x+1+−1=−5y+−1

2x=−5y−1

Step 3: Divide both sides by 2.

2x/2=−5y−1/2

x=−5/2y+−1/2

Answer:

x=−5/2y+−1/2