mileyritchie mileyritchie

09-10-2018
Mathematics

contestada

75=3(-6n-5)
Having troubles with this one too!! XD. I’m going to fail math this year, I swear ;((

Respuesta :

09-10-2018

Distribute.
3(-6n-5)=75
-18n-15=75
-18n=75+15
-18n=90
n=90/-18
n=-5

Answer Link

carmaminty carmaminty

09-10-2018

75 = 3 (-6n - 5)
75 = -18n - 15
75 + 15 = - 18n
90 = -18n
90 / 18 = -n
5 = -n
-5 = n

check:
75 = 3 (-6 (-5) - 5)
75 = 3 (30 - 5)
75 = 3 × 25
75 = 75

Answer Link

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