y=3/2x-2
a)when y=7 what does x equal?
b)when y= 5 1/2 what does x equal?
c)when y=-8 what does x equal?
fdwhen y=16 what does x equal?
2007-04-23 00:55:47 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
y = 3/2x - 2
7 = 3/2x - 2
7 + 2 = 3/2x - 2 + 2
9 = 3/2x
2(9) = 2(3/2x)
18 = 3x
18 / 3 = 3x / 3
18 / 3 = x
6 = x
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y = 3/2x - 2
5 1/2 = 3/2x - 2
11 / 2 = 3/2x - 2
11/2 + 2 = 3/2x - 2 + 2
11/2 + 2/1 = 3/2x
11/2 + 4/2 = 3/2x
15/2 = 3/2x
2(15/2) = 2(3/2x)
30/2 = 3x
15 = 3x
15/3 = 3x/3
15/3 = x
5 = x
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y = 3/2x - 2
- 8 = 3/2x - 2
- 8 + 2 = 3/2x - 2 + 2
- 6 = 3/2x
2(- 6) = 2(3/2x)
- 12 = 3x
- 12 / 3 = 3x / 2
- 12 / 3 = x
- 4 = x
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y - 3/2x - 2
16 - 3/2x - 2
16 + 2 = 3/2x - 2 + 2
18 = 3/2x
2(18) = 2(3/2x)
36 = 3x
36 / 3 = 3x / 3
36 / 3 = x
12 = x
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2007-04-23 02:44:36 · answer #1 · answered by SAMUEL D 7 · 1⤊ 0⤋
y = 3/2x - 2
y + 2 = 3/2x
2/3*(y+2) = x
a) 6
b) 5
c) -4
d) 12
2007-04-23 01:03:25 · answer #2 · answered by spiderman 1 · 0⤊ 0⤋
a) 6
b)13/3
C)-4
d)3
2007-04-23 01:02:01 · answer #3 · answered by Amit M 2 · 0⤊ 0⤋