How do you solve #3x - 7 = 23#?

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Answer 1 · 2018-04-29T21:52:05

#x = 10#

#3x - 7 = 23#

To solve for #x# we have to make #x# alone, so let's move everything else to the other side of the equation.

First, add #color(red)7# to both sides of the equation:
#3x - 7 quadcolor(red)(+quad7) = 23 quadcolor(red)(+quad7)#

#3x = 30#

Now divide both sides by #3#:
#(3x)/color(red)3 = 30/color(red)3#

#x = 10#

Hope this helps!