How do you solve the equation #2x+13=31#?

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Answer 1 · 2017-05-20T02:19:08

See a solution process below:

Step 1) Subtract #color(red)(13)# from each side of the equation to isolate the #x# term while keeping the equation balanced:

#2x + 13 - color(red)(13) = 31 - color(red)(13)#

#2x + 0 = 18#

#2x = 18#

Step 2) Divide each side of the equation by #color(red)(2)# to solve for #x# while keeping the equation balanced:

#(2x)/color(red)(2) = 18/color(red)(2)#

#(color(red)(cancel(color(black)(2)))x)/cancel(color(red)(2)) = 9#

#x = 9#