How do you simplify -3(a+5)+9−3(a+5)+9?

1 Answer
Neefgi
Mar 21, 2018

-3a-6−3a−6

Explanation:

-3(a+5)+9−3(a+5)+9
(-3a-15)+9(−3a−15)+9 color(blue)(" Distributive property: "-3*a and -3*5) Distributive property: −3⋅aand−3⋅5
-3a-15+9−3a−15+9 color(blue)(" Remove parentheses to make it more readable") Remove parentheses to make it more readable
-3a-6−3a−6 color(blue)(" Add like terms: " -15+9=6) Add like terms: −15+9=6

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