The cost to produce a table, y, is two times the cost to produce a chair, x.

y = 2x

Step-by-step explanation:

If a chair is x dollars, then a table is 2x dollars because it is two times the cost.

The cost of the table is y.

The cost of the table is also 2x.

Therefore, y = 2x.

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

but there’s no any figure there!