How do you solve #-10p+9p=12#?

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Answer 1 · 2017-08-26T02:01:05

See a solution process below:

First, combine like terms on the left side of the equation:

#-10color(red)(p) + 9color(red)(p) = 12#

#(-10 + 9)color(red)(p) = 12#

#-1color(red)(p) = 12#

#-p = 12#

Now, multiply each side of the equation by #color(red)(-1)# to solve for #p# while keeping the equation balanced:

#color(red)(-1) xx -p = color(red)(-1) xx 12#

#p = -12#