How do you solve 8( 5w - 20) = 20+ 20w?

2 Answers
Mar 28, 2018

w=9

Explanation:

40w-160=20+20w distribute
20w=180 add 20w and add 160 to both sides to have the term with w on one side
w=9 divide both sides by coefficient, 20, to isolate w

Mar 28, 2018

w=9

Explanation:

8(5w-20)=20+20w (Distribute the 8 to the numbers in the bracket)

40w-160=20+20w (subtract 20w from both sides)

20w-160=20 (add 160 to both sides)

20w=180 (Divide both sides by 20 to isolate the variable)

w=9

Check the answer by plugging in the answer for w to see if it works

8(5(9) -20) = 20+20(9)

8(45-20)=20+180

8(25)=200

200=200