2007-11-19 09:40:07 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
-3, you fool
2007-11-19 09:42:27 · answer #1 · answered by Sir Oprah 3 · 0⤊ 0⤋
12=20=-8+5= -3
2007-11-19 18:46:03 · answer #2 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
12-20+5
-8+5
-3
2007-11-19 17:48:10 · answer #3 · answered by Anonymous · 0⤊ 0⤋
12+(-20)+5
12-20+5
-8+5
-3 is the answer.
2007-11-19 17:44:33 · answer #4 · answered by Anonymous · 0⤊ 0⤋
12+(-20)+5
17+(-20) Add like terms (in this case 12 and 5)
-3 Solve (in this case add 17 and (-20)
2007-11-19 17:44:12 · answer #5 · answered by Anna 1 · 0⤊ 0⤋
12 + (-20) +5 = -3
12 - 20 + 5 = -3
note:
+ * - = -
+ * + = +
- * - = +
2007-11-19 17:43:37 · answer #6 · answered by cerelac 2 · 0⤊ 0⤋
well... 12+5=17
and 17+(-20)= 17-20= -3
2007-11-19 17:43:09 · answer #7 · answered by Anonymous · 0⤊ 0⤋
ok here it goes
12+(-20)+5
ok, whenever you have a problem with a positive before a negative, it is easiest to rewrite the problem without the positive.
12-20+5
now all you have to do is simplify
so do 12-20 and you get -18
now do -18+5 and you get -13
there you go! the answer is -13
2007-11-19 17:51:09 · answer #8 · answered by justme 3 · 0⤊ 1⤋
-3 no doubt
2007-11-19 17:46:33 · answer #9 · answered by M. R. 1 · 0⤊ 0⤋