How do you solve #-6+ \frac { m } { 7} = - 4#?

1 Answer
seol
Nov 21, 2016

#m=14#

Explanation:

equation
#-6+m/7=-4#

calculation
add 6 to both sides #\rArr\cancel(-6)\cancel(\color(red)(+6))+m/7=-4\color(red)(+6)#
multiply both sides by 7 #\rArr\cancel(\color(olive)(7))\timesm/\cancel(7)=2\times(\color(olive)(7))#
simplify multiplication #\rArrm=14#

checking
plug in #\color(indianred)(m=14)#
#-6+\color(indianreD)(14)/7\stackrel{?}{=}-4#
#-6+2\stackrel{?}{=}-4#
#-4=-4#
correct!

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