How do you solve #-3.7+w=9.4#?

1 Answer
EZ as pi
Sep 23, 2016

#w = 13.1#

Explanation:

You want to end up with an answer of # w = "a number"#

The #-3.7# is on the wrong side.

Add 3.7 to BOTH sides to keep the equation balanced.

#-3.7 +3.7 = 0 " "# they are called additive inverses

#-3.7 color(red)(+3.7) + w = 9.4 color(red)(+3.7)#

#color(white)(xxxxxxxxx)w = 13.1#

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