Evaluate the expression for x = 2 and y = 6. 2y - 2 = x

Substitute 6 for y:  We get (2[6]-2)/x, or:

(12-2) / x.  Now subst. 2 for x. We obtain 10/2, which equals 5 (answer)

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

ensure that you have copied down this problem correctly.   .

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15