How do you solve #10+ 2f = - 10- f - 10#?

Question

1111 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-04-25T04:59:55

#f=-10#

Given -

#10+2f=-10-f-10#

Simplify

#10+2f=-20-f#
Add #f# to both sides

#10+2f+f=-20-f+f#

Simplify

#10+3f=-20cancel(-f)cancel(+f)#

#10+3f=-20#

Add #-10 # to both sides

#10+3f-10 =-20-10#

Simplify

#cancel10+3fcancel(-10) =-30#

#3f=-30#

Divide both sides by #3#

#(3f)/3=(-30)/3#

Simplify

#(cancel3f)/cancel3=(-30)/3=-10#
#f=-10#