How do you solve #0.4m-0.7=0.22#?

Question

2570 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-02-17T14:27:47

See the entire solution process below:

Step 1) Add #color(red)(0.7)# to each side of the equation to isolate the #m# term while keeping the equation balanced:

#0.4m - 0.7 + color(red)(0.7) = 0.22 + color(red)(0.7)#

#0.4m - 0 = 0.92#

#0.4m = 0.92#

Step 2) Divide each side of the equation by #color(red)(0.4)# to solve for #m# while keeping the equation balanced:

#(0.4m)/color(red)(0.4) = 0.92/color(red)(0.4)#

#(color(red)(cancel(color(black)(0.4)))m)/cancel(color(red)(0.4)) = 2.3#

#m = 2.3#