6[3(x-5)/2] Whats the next step in solving this problem
2007-02-04 12:59:19 · 6 answers · asked by lpkegirl 3 in Science & Mathematics ➔ Mathematics
multiply 3 out: 6[(3x-15)/2]
divide by 2: 3(3x-15)
multiply by 3: 9x-45
2007-02-04 13:03:57 · answer #1 · answered by colt 1 · 1⤊ 0⤋
It's not actually an equation, it's an expression. To simplify it, work from the outside to the inside:
6[3(x-5)/2]
= 6.3.(x-5)/2
= 18 . (x-5) / 2
= (18/2) . (x-5)
= 9(x-5)
= 9x - 45
To solve the equation 6[3(x-5)/2] = 0, you can simplify as above and then solve 9x - 45 = 0 => 9x = 45 => x = 5. You can also do it a little more simply, using the fact that if ax = 0 and a is a non-zero constant, x must be zero:
6[3(x-5)/2] = 0
=> 3(x-5)/2 = 0
=> (x-5)/2 = 0
=> x-5 = 0
=> x = 5.
2007-02-04 21:05:28 · answer #2 · answered by Scarlet Manuka 7 · 0⤊ 0⤋
Do the work in the brackets first by multiplying the 3 out:
6(3x-15)/2
Divide 6 by 2:
3(3x-15)
9x-45
2007-02-04 21:14:15 · answer #3 · answered by Anonymous · 0⤊ 0⤋
take the 3/2 out of the fraction.
6(3)/2 ... times (x-5)
... or 9(x-5) = 9x -45
2007-02-04 21:02:54 · answer #4 · answered by koolkat 3 · 1⤊ 0⤋
what are we solving for?? x? what does the equation equal? You can't solve an equation with only one side of it.
2007-02-04 21:04:51 · answer #5 · answered by rklst9pitt 3 · 0⤊ 1⤋
well if it is a matter of life and death i wouldn't worry about it.. if in dought just " don't worry about it"
2007-02-04 21:08:36 · answer #6 · answered by Anonymous · 0⤊ 0⤋