Edward is playing a game where he draws cards with integers on them from a deck. if the integer is positive he moves forward that many steps; if the integer is negative he moves back that many steps.
edward drew the following cards: 3, -3, -4, 5, 10, -7. how many total steps did he move?
a)
-32
b)
-4
c)
4
d)
32

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

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