How do you simplify #5x + [ - 4- 3( 5x + 7) ]#?

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Answer 1 · 2018-01-18T03:51:04

#-10x-25#

#5x+[-4-3(5x+7)]#

#5x+[-4-15x-21]#

#5x-4-15x-21#

#-10x-25#

Answer 2 · 2018-01-18T03:56:54

#-5(2x+5)#

First, you want to solve using BEDMAS (brackets, exponents, division, multiplication, addition, subtraction)

So lets start by doing the things in the brackets first

#5x+[-4-3(5x+7)] #

#=5x+[-4-15x-21]# (multiply the -3 to the things in the bracket)

#=5x+[-15x-25]# (add the constants together)

Now we can add common terms together, so:
#-10x-25#

Then factor out the common multiple (which is -5) to get the simplified form:
#-5(2x+5)#