2006-11-04 05:49:04 · 24 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3p + 7 = 9 + 8p
3p + 7 - 3p = 9 + 8p - 3p
7 = 9 + 5p
7 - 9 = 9 + 5p - 9
- 2 = 5p
- 2/ 5 = 5p/5
- 2/5 = p
The answer is p = - 2/5
Insert the p value into the equation
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Check
3p + 7 = 9 + 8p
3(- 2/5) + 7 = 9 + 8(- 2/5)
- 6/5 + 7 = 9 + (- 16/5)
- 1.2 + 7 = 9 + (- 3.2)
5.8 = 9 - 3.2
5.8 = 5.8
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2006-11-04 07:06:29 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
Solution:
3p +7=9+8p
3p-8p=9-7
-5p=2
p= -2/5 ans.
2006-11-04 14:01:45 · answer #2 · answered by msb0pk 1 · 1⤊ 0⤋
2 over 5
2006-11-04 15:05:07 · answer #3 · answered by tinkerbell 4 · 0⤊ 0⤋
3p + 7 = 9 + 8p
subtract 3p from both sides
7 = 9 + 5p
subtract 9 from both sides
-2 = 5p
divide both sides by 5
-2/5 = p
---- or ---
p = -2/5 ----in decimal --- p = -0.40
2006-11-04 13:57:58 · answer #4 · answered by Bob 5 · 1⤊ 0⤋
3p+7=9+8p subtract 8p -7 from each side
-5p=2 divide by -5
p=-.4
2006-11-04 14:47:17 · answer #5 · answered by yupchagee 7 · 0⤊ 1⤋
(put the ps on one side) 3p-8p=9-7
(calculate it) -5p=2
(divide both sides by -5) p = -2/5
2006-11-04 13:53:56 · answer #6 · answered by nax 2 · 1⤊ 0⤋
p= -2/5
2006-11-04 13:56:56 · answer #7 · answered by SG 5 · 1⤊ 0⤋
3p+7=9+8p
5p=-2
p=-2/5
2006-11-04 14:04:31 · answer #8 · answered by openpsychy 6 · 1⤊ 0⤋
3p - 8p = 9 - 7
5p = -2
p= - 2/5
2006-11-04 14:43:43 · answer #9 · answered by Anonymous · 1⤊ 0⤋
-2/5
2006-11-05 00:19:59 · answer #10 · answered by live&learn 2 · 0⤊ 0⤋