2007-09-30 15:39:25 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
2x - 4 - 5x - 6
- 3x - 10
2007-09-30 21:24:07 · answer #1 · answered by Como 7 · 0⤊ 0⤋
Simplify by dealing with the parenthesis correctly, and then adding or subtracting like terms.
So,
(2x - 4) - (5x + 6)
=
2x - 4 -5x MINUS(!) 6
or
2x - 4 - 5x - 6
(This is because a negative/subtraction sign in front of a set of parenthesis changes the sign of every term INSIDE OF those parenthesis. Positives become negative, negatives become positive.)
Now deal with like terms:
2x - 5x - 4 - 6
=
-3x - 10
If you need to solve for x, then set the equation equal to zero:
-3x - 10 = 0
So,
-3x = 10
and
x = 10/-3
or
x = -10/3
2007-09-30 15:47:58 · answer #2 · answered by Joey M 2 · 0⤊ 0⤋
= 2x - 4 -5x - 6
= -3x - 10
2007-09-30 15:43:41 · answer #3 · answered by Monah 3 · 0⤊ 0⤋
If your trying to solve for x, this is how you do it.
2x-4-5x-6=0
-3x-10=0
-3x=10
x=10/-3= -3.33
2007-09-30 15:47:18 · answer #4 · answered by dawance88 2 · 0⤊ 0⤋
start by distributing the negative:
(2x-4)-(5x+6) becomes 2x-4-5x-6
then just combine like terms:
2x-5x-4-6
-3x-10
2007-09-30 15:46:14 · answer #5 · answered by zack 1 · 0⤊ 0⤋
The quantities are meaningless so take them out
and then you get.
-3x+2
2007-09-30 15:44:34 · answer #6 · answered by Kassidee 3 · 0⤊ 0⤋