How do you solve #-5n-8(1+7n)=-8#?
3 Answers
Sep 29, 2017
Explanation:
Open the brackets
Add both side 8
Sep 29, 2017
Explanation:
#"distribute bracket and collect like terms"#
#-5n-8-56n=-8#
#rArr-61n-8=-8#
#"add 8 to both sides"#
#-61ncancel(-8)cancel(+8)=-8+8#
#rArr-61n=0#
#rArrn=0#
#color(blue)"As a check"# Substitute this value into the equation and if both sides are equal then it is the solution.
#"left "=0-8(1+0)=0-8=-8=" right"#
#rArrn=0" is the solution"#
Sep 29, 2017
Explanation:
Expanding:
Adding 8 to both sides:
Dividing both sides by 61: