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: