Solve the equation
4x - 13 = 2x + 9

x=11

Step-by-step explanation:

4x-13=2x+9

2x-13=9

2x=22

x=11

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150