Raul used the steps shown below to solve the equation. in which step did raul make a mistake? 5x-3(2x+7)=2x+9 step 1: 5x-6x-21=2x+9 step 2: -11x-21=2x+9 step 3: -12x=30 step 4: x=-30/12 a. step 1 b. step 2 c. step 3 d. step 4

Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c, with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?