2007-12-18 03:26:27 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
1. -x + 7 = 2x + 7 ; x = 0
2. 3x - 6 + 5 = 2x - 1 + x ; 3x - 1 = x e R (x can be any real number).
FCH.
2007-12-18 03:30:29 · answer #1 · answered by Anonymous · 0⤊ 1⤋
artwork from center out 7[2x+2(3-2x)+a million]=4+5(2-3x)-x 7[2x + 6 - 4x +a million] = 4 + 10 -15x - x 14x +40 two - 28x + 7 = 4 + 10 - 15x - x combine like words 40 9-14x = 14-16x pass like words to a minimum of one factor 40 9-14 = 14x -16x combine like words returned 35 = -2x divide the two facets via -2 35/-2 = x -17.5 = x
2016-10-02 01:25:18 · answer #2 · answered by chappel 4 · 0⤊ 0⤋
3-(x-4) = 2x+7
3-x+4 = 2x+7
3-7+4 = 2x+x
0 = 3x
0 = x
3(x-2)+5 = 2x-1+x
3x-6+5 = 2x-1+x
3x-1 = 3x-1
There is an infinite number of solutions
2007-12-18 03:34:08 · answer #3 · answered by ironduke8159 7 · 0⤊ 1⤋
3-(x-4) = 2x+7
3 - x + 4 = 2x + 7
-x + 7 = 2x + 7
-x = 2x
0 = 3x
0 = x
3(x-2)+5 = 2x-1+x
3x - 6 + 5 = 3x - 1
3x - 1 = 3x - 1
This is an identity, so all real numbers are solutions.
2007-12-18 03:32:49 · answer #4 · answered by ben e 7 · 0⤊ 1⤋
3-(x-4) = 2x+7
3-x+4 = 2x+7
3-7+4 = 2x+x
0 = 3x
0 = x
3(x-2)+5 = 2x-1+x
3x-6+5 = 2x-1+x
3x-1 = 3x-1
2007-12-18 03:49:54 · answer #5 · answered by J 6 · 0⤊ 1⤋
3-(x-4) = 2x+7
3-x+4=2x+7
3+4=3x+7
7=3x+7
0=x
3(x-2)+5 = 2x-1+x
x=0
2007-12-18 03:31:52 · answer #6 · answered by Melissa.Speer 2 · 0⤊ 1⤋
1. 3-x+4=2x+7(+x)
7=3x+7 (-7)
0=x
2. 3x-6+5=2x-1+x
3x-1=3x-1
x= anything (n)
2007-12-18 03:43:06 · answer #7 · answered by Anonymous · 0⤊ 1⤋
3-(x-4) = 2x+7
3-x+4 = 2x+7
7-x=2x+7
7-7=2x+x
0=3x
0/3=x
0=x
3(x-2)+5 = 2x-1+x
3x-6+5=2x-1+x
3x-11=3x-1
3x-3x=-1+11
0x=10
2007-12-18 03:34:56 · answer #8 · answered by Siva 5 · 0⤊ 2⤋
7-x = 2x+7
-x = 2x
0 = 3x
0 = x
3x-1 = 3x-1
x = x
x is any real number
2007-12-18 03:34:36 · answer #9 · answered by sam 4 · 0⤊ 2⤋