show me the working for this sum please
2006-11-01 08:58:31 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Hello again darling
3(m-2)-(m=4)=8
● Step 1
3(m-2) =
(3 * m) + (3 * -2 ) =
3m - 6
● Step 2
-(m - 4)=
-m + 4
● Step 3
3m - 6 - m + 4 = 8
( 3m - m ) = 8 +6 - 4
2m = 10
m = 10 / 2
m = + 5
Good Luck Sweetheart ♣
2006-11-01 09:04:17 · answer #1 · answered by sweetie 5 · 7⤊ 0⤋
I'm not sure what you mean by contradition...
Orginal equation:
3(m - 2) - (m - 4) = 8
Distributing the 3 and the -1 through:
3m - 6 - m + 4 = 8
Combining like terms:
2m - 2 = 8
Add 2 to both sides:
2m = 10
Divide both sides by 2:
m = 5
2006-11-01 17:01:34 · answer #2 · answered by Puzzling 7 · 1⤊ 0⤋
Distributive property:
3m-6-m+4=8
2m-2=8
2m=10
m=5
Check:
3(5-2)-(5-4)=8
3(3)-1=8
9-1=8
8=8
2006-11-01 17:16:28 · answer #3 · answered by Anonymous · 0⤊ 0⤋
3(m - 2) - (m - 4) = 8
3m - 6 - m + 4 = 8
2m - 2 = 8 ( Add 2 to both sides)
2m = 10
m = 5
Check:
3(5 - 2) - (5 - 4) = 8
3(3) - (1) = 8
9 - 1 = 8
8 = 8
QED
2006-11-01 17:48:42 · answer #4 · answered by CSUFGrad2006 5 · 0⤊ 0⤋