How do you solve 2x + 7 = 8?

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Answer 1 · 2017-03-27T00:18:02

See the entire solution process below:

Step 1) Subtract #color(red)(7)# from each side of the equation to isolate the #x# term while keeping the equation balanced:

#2x + 7 - color(red)(7) = 8 - color(red)(7)#

#2x + 0 = 1#

#2x = 1#

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) = 1/color(red)(2)#

#(color(red)(cancel(color(black)(2)))x)/cancel(color(red)(2)) = 1/2#

#x = 1/2#