How do you simplify -8 ( -1/8p + q )+ 1/9 ( 63p - 9q ) ?
1 Answer
Jun 15, 2018
Explanation:
"each term in the bracket is multiplied by the value outside"
"the bracket"
color(blue)"first bracket"
color(red)(-8)(-1/8p+q)
=(-cancel(color(red)(8))xx-1/cancel(8)p)+(color(red)(-8)xxq)
=p-8q
color(blue)"second bracket"
color(red)(1/9)(63p-9q)
=(1/cancel(color(red)(9))xxcancel(63)^7 p)+(1/cancel(color(red)(9))xx-cancel(9)q)
=7p-q
"putting the 2 expansions together"
p-8q+7p-q=8p-9q
