Write and solve an equation to determine how may books each person has.

# books Annie = x

# books Selina = y

# books Laura = z

x= 5 + y

y = 2z - 3

x + y + z = 114

SOLVE SIMULTANEOUSLY USING SUBSTITUTION "x = 5 +y" and "y = 2z - 3"

2z - y=3--> 4z-2y=6

5+y+y+z=114 --> 2y+z=109

Adding the two equations,

5z+0=115

So, z=23

y=43

x=48