How do you simplify #2( 3z - 4) - 9#?

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Answer 1 · 2017-11-27T22:47:44

See a solution process below:

First, eliminate the parenthesis by multiplying each term within the parenthesis by the term outside the parenthesis:

#color(red)(2)(3z - 4) - 9 =>#

#(color(red)(2) xx 3z) - (color(red)(2) xx 4) - 9 =>#

#6z - 8 - 9#

Now, combine like terms:

#6z + (- 8 - 9) =>#

#6z + (-17) =>#

#6z - 17#