Question

Solve the following equation for x: 5x + 3y = 15.

A.x = negative three fifthsy − 3
B.x = negative three fifthsy + 3
C.x = three fifthsy + 3
D.x = three fifthsy − 3

Answer 1

B

Explanation:

5x + 3y = 15

5x = -3y +15

x = -3/5y +3

Answer 2

The correct option is B) x = negative three fifths y + 3

Explanation:

Consider the provided equation.

5x + 3y = 15

We need to solve the above equation for x.

Subtract both the side by 3y.

`5x + 3y-3y = 15-3y`

`5x= 15-3y`

To find the value of y, isolate the variable y:

Divide both the sides by 5.

`(5x)/(5)= (15)/(5)-(3y)/(5)`

`x= 3-(3y)/(5)`

`x= -(3y)/(5)+3`

Hence, the correct option is B) x = negative three fifths y + 3