How do you solve -3( b + 9) = - 8?
1 Answer
Sep 11, 2017
Explanation:
"distribute the bracket on the left"
-3b-27=-8
"add 27 to both sides"
-3bcancel(-27)cancel(+27)=-8+27
rArr-3b=19
"divide both sides by - 3"
(cancel(-3) b)/cancel(-3)=19/(-3)
rArrb=-19/3
color(blue)"As a check" Substitute this value into the left side of the equation and if it is equal to the right side then it is the solution.
-3(-19/3+9)=19-27=-8=" right side"
rArrb=-19/3" is the solution"