2006-09-28 14:02:09 · 6 answers · asked by Le Thanh N 1 in Science & Mathematics ➔ Mathematics
6-3(5-7)
=6-3(-2)
=6+6
=12
2006-09-29 00:47:25 · answer #1 · answered by Nikki 2 · 0⤊ 0⤋
There are three ways to solve it.
(1)
6 - 3 ( 5 - 7 )
= 6 - 15 + 21
= 12
(2)
6 - 3(5 -7 )
= 6 - 3 (-2)
= 6 +6
= 12
(3)
6 - 3 (5 -7 )
= 3*2 - 3(5-7)
= 3 [ 2 - (5 - 7)]
= 3 [ 2 - 5 + 7]
= 3 * 4
=12
The third one is more difficult than another, so i think that u should solve 6-3(5-7) by the second and the first one.
Good luck in math !!
2006-09-29 04:50:16 · answer #2 · answered by littlecat1705 1 · 0⤊ 0⤋
12
2006-09-28 21:06:25 · answer #3 · answered by Anonymous · 0⤊ 0⤋
12
2006-09-28 21:05:33 · answer #4 · answered by kujo_mojo 1 · 0⤊ 0⤋
well be sure to use pemdas-
parenthesis (5-7)=-2
multiplication 3*-2=-6
add 6--6= 12
2006-09-28 21:20:50 · answer #5 · answered by soggy_dough_nut 2 · 0⤊ 0⤋
6-3(-2)
6+6
12
2006-09-28 21:04:39 · answer #6 · answered by caitlin_batts 2 · 0⤊ 0⤋