Arectangular room must have a maximum area of 84 square feet. the room needs to be 8 feet wide. what is the longest the room can be? a. 10.4 b. 10.5 c. 10.6

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: