A bird is flying above the ocean and a shark is swimming below the surface. The bird's vertical elevation is 15 feet and the shark's is -5.7. The equation 15 + d = -5.7 represents this situation. What value of d will make the equation true?

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

you save $70

discount would be 35% off

step-by-step explanation:

y=-2x+1500

step-by-step explanation:

+1500

2 over one

beth buys 10 x shirts and still has more than 100 in her account