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

2 Answers
Jan 18, 2018

-10x-25

Explanation:

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

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

5x-4-15x-21

-10x-25

Jan 18, 2018

-5(2x+5)

Explanation:

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)