How do you solve #-8m+15=9#?

Question

1353 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-04-25T21:18:33

See the solution process below:

Step 1) Subtract #color(red)(15)# from each side of the equation to isolate the #m# term while keeping the equation balanced:

#-8m + 15 - color(red)(15) = 9 - color(red)(15)#

#-8m + 0 = -6#

#-8m = -6#

Step 2) Divide each side of the equation by #color(red)(-8)# to solve for #m# while keeping the equation balanced:

#(-8m)/color(red)(-8) = (-6)/color(red)(-8)#

#(color(red)(cancel(color(black)(-8)))m)/cancel(color(red)(-8)) = (-2 xx 3)/color(red)(-2 xx 4)#

#m = (color(red)(cancel(color(black)(-2))) xx 3)/color(red)(color(black)(cancel(color(red)(-2))) xx 4)#

#m = 3/4#