How do you solve #-4( 2+ 5a ) = 32#?

2 Answers
Jul 14, 2017

Multiply the #-4# through the parentheses:

#-8-20a=32#

Collect like terms:

#-20a=40#

Divide both sides by #-20#:

#a=40/-20=-2#

Jul 14, 2017

#a=-2#

Explanation:

#-4(2+5a)=32#

#2+5a=-8# #-># divide both sides by #-4#

#5a=-10# #-># subtract #2# from both sides

#a=-2# #-># divide both sides by #5#