Question

Which of the following is equivalent to 3x - y = 15 ?O y = 3x - 15O y=-3x +15O y = x-5O y = -x + 15

Answer 1

3x-y=15

Solve for y:

3x-y=15

subtract 3x from both sides of the equation:

3x-y-3x =15-3x

-y = 15-3x

multiply each side by -1

-y(-1) = (15-3x)-1

y= -15+3x

Rearranging:

y= 3x-15