How do you solve #100=1.5x+55#?

1 Answer
Dec 28, 2016

#color(coral)"x = 30"#

Explanation:

#color(blue)("Subtract 55 on both sides:")#

#100=1.5x+55#
#-cancel55# #color(white)(aaaaa) -55#

55 cancels out on the right side, and when you subtract 55 from 100 on the left you get 45:

#45 = 1.5x#

#color(purple)("Divide both sides 1.5 to get x by itself.")#

#45/1.5=(cancel"1.5"x)/cancel1.5#

Now you are just left with #x# on the right side and 30 on the left side.

Thus,
#color(red)"x = 30"#