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

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Answer 1 · 2016-12-28T02:31:54

$x = 30$ $color(coral)"x = 30"$

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

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

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,
$color(red)"x = 30"$

How do you solve 100=1.5x+55100=1.5x+55100=1.5x+55?