How do you solve #9e-7=7e-11#?

Question

8263 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-12-16T00:06:31

#e=-2#

Combine like terms by performing the opposite operation of subtracting #7e# on both sides of the equation

On the right side of the equation:

#7e-7e=0e=0#

On the left side of the equation:

#9e-7e=2e#

Equation now looks like:

#2e-7=-11#

Combine like terms by adding #7# on both sides of the equation

On the left:

#-7+7=0#

On the right:

#-11+7=-4#

Equation looks like:

#2e=-4#

Isolate #e# by dividing both sides of the equation by 2

On the left:

#(2e)/2=e#

On the right:

#-4/2=-2#

Equation:

#e=-2#