Simplify the expression. First use the distributive property to remove any parentheses.
-$- 5.8 ( 8 r + 9 ) + 3.1 ( 5 r + 6 )$
A) $- 98.6 \mathrm { r }$
B) $- 30.9 r + 9$
C) $- 30.9 r - 33.6$
D) $2.2 r + 3.2$

Question

Quizplus · Accepted Answer

First, distribute $-5.8$ across $8r + 9$ to get $-46.4r - 52.2$. Then, distribute $3.1$ across $5r + 6$ to get $15.5r + 18.6$. Adding these results together gives $-30.9r - 33.6$.

Simplify the Expression −5.8(8r+9)+3.1(5r+6)- 5.8 ( 8 r + 9 ) + 3.1 ( 5 r + 6 )−5.8(8r+9)+3.1(5r+6)

Simplify the Expression $- 5.8 ( 8 r + 9 ) + 3.1 ( 5 r + 6 )$