2007-02-16 01:17:12 · 16 answers · asked by wlo 1 in Science & Mathematics ➔ Mathematics
Put -3 in where you see x:
3x + 6
= 3(-3) + 6
= -9 + 6
= -3
2007-02-16 01:23:02 · answer #1 · answered by Mathematica 7 · 2⤊ 0⤋
Since x is given as -3, 3x will be -9 and 3x+6 will be -9+6 which is equal to -3. What is the difficulty? It is a case of simple substitution.
2007-02-16 09:30:12 · answer #2 · answered by Swamy 7 · 0⤊ 1⤋
Solve the expression when x = - 3 with 3x + 6
First: replace "-3" with the x-variable in the expression....
3(-3) + 6
- 9 + 6
- 3
2007-02-16 12:32:11 · answer #3 · answered by ♪♥Annie♥♪ 6 · 0⤊ 1⤋
3x + 6, for x = -3
3(-3) + 6
-9 + 6
-3
2007-02-16 10:06:32 · answer #4 · answered by Ashley 2 · 0⤊ 0⤋
3x+6=-3
2007-02-16 10:25:42 · answer #5 · answered by Anonymous · 0⤊ 1⤋
3(-3)+6=
-9+6=-3
2007-02-16 10:24:00 · answer #6 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
3 times -3 = -9.
-9 + 6 = -3.
2007-02-16 09:22:26 · answer #7 · answered by poohb2878 6 · 0⤊ 1⤋
if x=-3 then 3x+6=-3
2007-02-16 09:21:00 · answer #8 · answered by rajghar104 1 · 0⤊ 1⤋
Given x = -3
3(-3) + 6 = -9 + 6 = -3
QED
2007-02-16 11:16:31 · answer #9 · answered by CSUFGrad2006 5 · 1⤊ 0⤋
You are trying to get x by it self. You don't have the whole problem. normally, you would have a problem like this:
3X-4=32 so you add 4 to each side to see what 3 X's will equal. 3X-4=32 Now to solve. -4+4=0
+4 +4
32+4=36 So 3X=36. Now you want to know what 1X is, so you divide them both by three. 3 divided by 3 is 1.
36 divided by 3 is 12. So X = 12
2007-02-16 09:38:40 · answer #10 · answered by Mac 2 · 0⤊ 2⤋