How do you solve #2w - 5 = 4#?

1 Answer
Alan P.
Jul 23, 2015

Add #5# to both sides then divide by 2

Explanation:

#2w-5 = 4#

#rArr##color(white)("XXXX")##2w = 9##color(white)("XXXX")#since you can add a constant to both sides of an equation without changing the validity of the equation.

#rArr##color(white)("XXXX")##w = 9/2##color(white)("XXXX")#since you can divide both sides of an equation by a non-zero constant without changing the validity of the equation.

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