Use properties to rewrite the given equation. Which equations have the same solution as 3x + } + x = { - 1x? Select three options.
3 - 2 3X
18x + 20 + 30x = 15 - 6x
18x + 20 + x = 15 - 6x
24x + 30x = -5
12x + 30x = -5

(4,5

look up a corrdinate plane and do what the thingy says and boom

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

the answer is 8.64

step-by-step explanation: