How do you solve #5x-14=21#?

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Answer 1 · 2018-04-29T21:57:20

#x = 7#

#5x - 14 = 21#

We want to solve for the variable #x#, so we have to make it alone and move everything else to the other side of the equation.

First, add #color(red)14# to both sides of the equation:
#5x - 14 quadcolor(red)(+quad14) = 21 quadcolor(red)(+quad14)#

#5x = 35#

Now divide both sides by #color(red)5#:
#(5x)/color(red)5 = 35/color(red)5#

Therefore,
#x = 7#

Hope this helps!