How do you do this? -7x - 3x + 2= -8x - 8

Me what is the value of x? showing work would be appreciated - ! : )

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)