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_3__
7 x = 15

do I multiply by 7 ??
is the answer x=49

2007-07-01 07:16:17 · 4 answers · asked by marianne d 2 in Science & Mathematics Mathematics

4 answers

Is it [3/(7x)] or [3/7 * x] ?

If it is 3/7 * x = 15, that is 3x/7 = 15,
then you have to multiply both sides by 7
3x = 105
x = 35


If it is 3/(7x) = 15,
then you have to multiply both sides by 7x
3 = 105x
So x = 3/105
x = 1 / 35 = 0.028

2007-07-01 07:21:32 · answer #1 · answered by ♥ Ă♫̉ğĕ!̉ ♥ 3 · 0 1

3x/7 =15
3x = 15*7
3x= 105
x= 105/3
x = 35

2007-07-01 14:18:23 · answer #2 · answered by sweet n simple 5 · 1 0

Assume question is:-
(3 / 7).x = 15
3x = 105
x = 35

2007-07-05 05:41:22 · answer #3 · answered by Como 7 · 0 0

(3/7)x = 15

7(3/7)x = 7(15)

3x = 105

3x / 3 = 105/3

x = 105/3

x = 35

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2007-07-01 14:42:58 · answer #4 · answered by SAMUEL D 7 · 0 0

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