# Question #f7e76

##### 1 Answer

#### Explanation:

The first thing that you need to do here is to distribute the minus sign to all the terms of the equation. Alternatively, you can just cancel out the minus sign on both sides because

#-(0.79m + 0.227) = - (2.09m + 0.838)#

is equivalent to

#-1 * (0.79m + 0.227) = -1 * (2.09 * m + 0.838)#

You will end up with

#color(red)(cancel(color(black)(-1))) * (0.79m + 0.227) = color(red)(cancel(color(black)(-1))) * (2.09m + 0.838)#

#0.79m + 0.227 = 2.09m + 0.838#

Next, subtract

#0.79m + 0.227 - 2.09m = color(red)(cancel(color(black)(2.09m))) + 0.838 - color(red)(cancel(color(black)(2.09m)))#

#-1.3m + 0.227 = 0.838#

Subtract

#-1.3m + color(red)(cancel(color(black)(0.227))) - color(red)(cancel(color(black)(0.227))) = 0.838 - 0.227#

#-1.3m = 0.611#

Finally, divide both sides of the equation by

#(color(red)(cancel(color(black)(-1.3)))m)/color(red)(cancel(color(black)(-1.3))) = 0.611/-1.3#

#m = -0.47#