Question

2x + 5= 12
whats x?

Answer 1

x= 3.5

Explanation:

2x+5=12

Subtract 5 on both sides

2x=7

divide by 2

x= 3.5

Answer 2

x = 7/2 = 3 1/2

Explanation:

2x + 5= 12

Subtract 5 from each side

2x + 5-5= 12-5

2x = 7

Divide each side by 2

2x/2 =7/2

x = 7/2

Changing from an improper fraction to a mixed number

2 goes into 7 3 times with 1 left over

x = 3 1/2