How do you solve #\frac { 3} { 5} ( 15x + 10) = - 3#?

2 Answers
Sonnhard · Mark D.
Jun 4, 2018

#x=-1#

Explanation:

Multiplying by #5# we get

#3(15x+10)=-15#
expanding

#45x+30=-15#
so
45x=-45# #x=-1#

Jim G.
Jun 8, 2018

#x=-1#

Explanation:

#"multiply both sides by 5 to eliminate the fraction"#

#cancel(5)xx3/cancel(5)(15x+10)=5xx-3#

#3(15x+10)=-15larrcolor(blue)"distribute"#

#45x+30=-15#

#"subtract 30 from both sides"#

#45x=-15-30=-45#

#"divide both sides by 45"#

#x=(-45)/45=-1#

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