How do you solve #4x - 8 -4x = 13+ 7x#?

1 Answer
Alan P.
Mar 13, 2018

#x=-3#

Explanation:

#color(red)(4x)-8color(red)(-4x)=13+7x#

#color(white)("XXX")rarr -8=13+7x#

#color(white)("XXX")rarr -8color(blue)(-13)=color(red)(13)+7xcolor(red)(-13)#

#color(white)("XXX")-21=7x#

#color(white)("XXX")(-21)color(blue)(/7)=7xcolor(blue)(/7)#

#color(white)("XXX")-3=xcolor(white)("xxxxx")orcolor(white)("xxxxx")x=-3#

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