An adult and blinks about 450 times in 30 minutes. a 12 year old blinks about 150 times in 15 minutes. how many more does an adult blink than a 12 year old?

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:

the answer would be c:   ax + b = ax + c

step-by-step explanation: