How do you solve #5( 3n + 3) = 8n - 20#?

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Answer 1 · 2016-09-29T21:14:27

#n=-5#

#5(3n+3)=8n-20#

#15n+15=8n-20#

#15n-8n=-20-15#

#7n=-35#

#n=-35/7#

#n=-5#

Answer 2 · 2016-09-29T21:27:13

#n=-5#

Solve: #5(3n+3)=8n-20#

Expand the left side using the distributive property.

#15n+15=8n-20#

Subtract #8n# from both sides.

#15n+15-8n=-20#

Simplify.

#7n+15=-20#

Subtract #15# from both sides.

#7n=-20-15#

Simplify.

#7n=-35#

Divide both sides by #7#.

#n=(-35)/7#

Simplify.

#n=-5#