t - (-16) = 9............t=???
2007-10-01 11:32:16 · 21 answers · asked by coolio_gal 1 in Science & Mathematics ➔ Mathematics
a negative times a negative is a postive.
so, t + 16 = 9...now subtract 16 from both sides to isolate the t
t = 9-16
t = - 7
2007-10-01 11:36:36 · answer #1 · answered by solverqueen 2 · 0⤊ 0⤋
Remember to perform mathematical functions from Left to Right, just like we read. t minus a minus 16 is the same as saying t + 16 = 9. In order to get the left half of the equation down to 9, t must be a minus number. -7 +16 = 9. t = -7.
2007-10-01 11:44:32 · answer #2 · answered by Casey 2 · 0⤊ 0⤋
t-(-16)=9
t+16=9 switch the 2 neg. signs and make them addition like so.
subtract 16-9 which equals 7.
and if you make 7 negative and take it away from 16 you would get positive 9
so t is a negitave number t= -7
-7+16=9
2007-10-01 11:38:37 · answer #3 · answered by Elle-a-vator : 1 · 0⤊ 0⤋
Just in case you didn't know:
two negatives (like 1--1 or 1-(-1)) is the same as one positive (1+1)
so this one plays out like this:
t+16=9
-16 -16
t= -7
2007-10-01 11:37:18 · answer #4 · answered by flyingphoenix 2 · 0⤊ 0⤋
t-(-16)=9 change the subtraction into addition and then make the -16 positive so the proublem is t+16=9 now take 9-16 and you get -7
2007-10-01 11:38:56 · answer #5 · answered by Anonymous · 0⤊ 0⤋
=> t+16=9
=>t=9-16=-7
t= -7
2007-10-01 11:37:02 · answer #6 · answered by Anonymous · 0⤊ 0⤋
t-(-16)=9
minusing a negative is basically adding so change it to
t+16=9 so t must be negative and 9 - 16 equals -7
so -7 + 16 = 9 and t= -7
2007-10-01 11:39:42 · answer #7 · answered by KyleS 2 · 0⤊ 0⤋
t= 7
2007-10-01 11:35:14 · answer #8 · answered by questioner 3 · 0⤊ 1⤋
it becomes t+16=9 ....
t= negative 7
2007-10-01 11:36:41 · answer #9 · answered by Dee'z 2 · 0⤊ 0⤋
t - (- 16) = 9
t + 16 = 9
Transpose 16
t + 16 - 16 = 9 - 16
Collect like terms
t = - 7
- - - - - - s-
2007-10-01 11:39:44 · answer #10 · answered by SAMUEL D 7 · 0⤊ 0⤋