2007-01-22 14:23:23 · 7 answers · asked by rana r 1 in Science & Mathematics ➔ Mathematics
Multiply out brackets first giving
18w + 30 = 20w + 20
Then -18w from each side giving
30 = 2w + 20
Then minus 20 from both sides to give
2w = 10
Then divide both sides by 2 to give
w = 5
2007-01-22 14:29:37 · answer #1 · answered by kewlguitarist 2 · 0⤊ 0⤋
w=5
2007-01-22 22:29:39 · answer #2 · answered by albert167 1 · 0⤊ 0⤋
w=5
2007-01-22 22:26:58 · answer #3 · answered by El Nino 2 · 0⤊ 0⤋
First: eliminate both sets of parenthesis > multiply the outer terms with the terms in both sets of parenthesis (distribution)....
(6)(3w) + (6)(5) = (2)(10w) + (2)(10)
18w + 30 = 20w + 20
Sec: combine "like" terms > subtract "30" from both sides (when you move a variable/number to the opposite side, always use the opposite sign)....
18w + 30 - 30 = 20w + 20 - 30
18w = 20w - 10
*Subtract "20w" from both sides....
18w - 20w = 20w - 20w - 10
- 2w = - 10
Third: isolate "w" on one side > divide both terms by "-2"....
(-2w)/-2 = -10/-2
w = 5
2007-01-22 22:31:21 · answer #4 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
18w+30=20w+20
10=2w
5=w
2007-01-22 22:34:18 · answer #5 · answered by phatso 4 · 0⤊ 0⤋
6(3w+5)=2(10w+10)=?
18w+30 = 20w+20 <---------------------distribute
10 = 2w <--------------------------------transpose like terms
w = 5
2007-01-22 23:02:59 · answer #6 · answered by randy 1 · 0⤊ 0⤋
Do you want the answer and/or process?
18w+30=20w+20
-18w -18w
---------------------------
30=2w+20
-20 -20
--------------------
10=2w
/2 /2
--------------
5=w
2007-01-22 22:33:06 · answer #7 · answered by Death of Reason 2 · 0⤊ 0⤋