Here is the questions.
1.-6x-4+4x+3=-1-2x-3x+1
2.8n+17-10n+17=-2
3.0.1a-0.03+0.4a=0.2+a
4.-8n+13+10n+13=6
5.0.1x-0.06+0.4x=0.2+x
2007-05-22 05:02:27 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
1. x=1/3
2. n= 18
3. a= -23/50
4. n= -10
5. x= - 26/50
2007-05-22 05:10:21 · answer #1 · answered by gartfield72 2 · 0⤊ 1⤋
These problem are all the same.
Rearrange the terms using the commutative property
(-6x+4x) + (-4+3) = (-2x-3x) + (1+1)
-2x -1 = -5x + 2
Get all the constant terms on one side and the linear terms on the other using addition of the same thing to both sides of the equation
-2x - 1 + 1 = -5x + 2 + 1
-2x = -5x + 3
-2x + 5x = -5x + 5x + 3
3x = 3
Now divide both sides by the coefficient of the linear term
3x/3 = 3/3
x = 1
Check your answer by plugging it into the original equation
-6(1) - 4 + 4(1) + 3 = 1 - 2(1) - 3(1) + 1
-6 - 4 + 4 + 3 = 1 - 2 - 3 + 1
-3 = -3
A miracle.
The other problems are exactly like this one.
2007-05-22 12:12:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Get the variable terms on one side and the non-variable terms on the other side.
1. -6x + 4x + 2x + 3x = 4 - 3 - 1 + 1
3x = 1
x = 1/3
2. 8n - 10n = -17 - 17 - 2
-2n = -36
n = 18
2007-05-22 12:11:17 · answer #3 · answered by TychaBrahe 7 · 0⤊ 0⤋
-6x-4+4x+3=-1-2x-3x+1
-6x+4x+2x+3x = -1+1+4-3
3x = 1 --> x = 1/3
8n+17-10n+17=-2
8n -10n = -2 -17-17
-2n =-36 --> n= 18
0.1a-0.03+0.4a=0.2+a
.1a +.4a-a =.2 +.03
-.5a = .23
a = - .115
-8n+13+10n+13=6
-8n +10n =6-13-13
2n -20 --> n = -10
0.1x-0.06+0.4x=0.2+x
.1x +.4x -x =.2 +.06
-.5x = .26 --> x = -.52
2007-05-22 12:20:00 · answer #4 · answered by ironduke8159 7 · 0⤊ 0⤋
Combine like terms on each side of the equation, then move all terms with variables to the left of the = and all others to the right by adding their opposite to both sides, then divide by the number in front of the variable. example:
-6x-4+4x+3=-1-2x-3x+1
-2x - 1 = -5x + 0
5x + -2x - 1 + 1= 5x + -5x + 1
3x = 1
x = 1/3
2007-05-22 12:09:07 · answer #5 · answered by hayharbr 7 · 0⤊ 0⤋
1: -6x+4x+2x+3x=-1+1+4-3
3x=1
x=1/3
2: -2n=-36
n=19
3: 10a+40a-100a=20+.3
a=-23/50
4: 2n=-20
n=-10
5: 10x-6+40x=20+100x
-26=50x
-26/50=x
2007-05-22 12:18:01 · answer #6 · answered by Jack Kerouac 6 · 0⤊ 0⤋
1. 3x=1 => x=1/3
2. n=18
3. 0.5a=0.5 => n=1
4. 2n=-20 =>n=-1
5. 0.5x=-0.26 => x=0.52
2007-05-22 12:10:25 · answer #7 · answered by j.j 2 · 0⤊ 0⤋
1.-6x-4+4x+3=-1-2x-3x+1
-2x=-5x
-7x=0
x=0.
solve others yourself.
2007-05-22 12:14:18 · answer #8 · answered by Anonymous · 0⤊ 0⤋
1. x=0.3
2.n=negative9.5
2007-05-22 12:18:18 · answer #9 · answered by shantelle g 1 · 0⤊ 0⤋
What is the question?
2007-05-22 12:09:33 · answer #10 · answered by I know some math 4 · 0⤊ 2⤋