A) Expression
B) Linear equation
C) Equation which is not linear
2)Solve. 11x + 6 = 10x
3)Solve. 4(7x + 10) = 3(9x – 5) + 20
4)Find the mean.
2, 3, 8, 9, 13
5) Solve. 12 – 4x = 20
6) Solve. 6x + 4(3x – 2) = 6x + 2
2007-07-07 07:26:29 · 6 answers · asked by karen 2 in Science & Mathematics ➔ Mathematics
1) linear
2) 11x+6=10x
11x-10x=6
x=6
3) 4(7x+10)= 3(9x-5) + 20
28x+40=27x-15+20
28x-27x=-15+20-40
x=-35
4) 2+3+8+9+13/5
= 7
5) 12-4x=20
-4x=20-12
-4x=8
x=-2
6) 6x+4(3x-2)= 6x+2
6x+12x-8=6x+2
12x=10
x=5/6
2007-07-07 07:52:22 · answer #1 · answered by chris 3 · 0⤊ 0⤋
1) B
2) x= -6
3) 28x+40 = 27x -15+20
x= -15+20 -40 = -35
4) mean = (2+3+8+9+13)/5 = 7
5) 12-20 = 4x
4x=-8 --> x = -2
6) 6x + 12x -8 = 6x +2
12x = 10 --> x = 5/6
Jewel's answer to question 4 is wrong.
2007-07-07 14:39:03 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
1) Linear
2) x=-6
3) x=-35
4) mean=7
5) x=-2
6) x=5/6
2007-07-07 15:07:19 · answer #3 · answered by Ian Sturdy 2 · 0⤊ 0⤋
1. B
2. x = -6
3. x = 5/40 or 1/8
4. mean is 7
5. x = -2
6. x = 10/12 or 5/6
2007-07-07 14:36:43 · answer #4 · answered by olens 2 · 0⤊ 1⤋
1) b
2) x= -6
3) x= -35
4) 7.4
5) x= -2
6) x= 5/6
2007-07-07 14:38:02 · answer #5 · answered by Jewel 3 · 1⤊ 0⤋
linear
2) x = -6
2007-07-07 14:28:55 · answer #6 · answered by Anonymous · 0⤊ 0⤋