2006-12-07 05:11:15 · 17 answers · asked by Ken H 1 in Science & Mathematics ➔ Mathematics
Divide both sides by 5...
|x| = 4
then x = +/- 4 because of the absolute value function
2006-12-07 05:13:32 · answer #1 · answered by computerguy103 6 · 1⤊ 0⤋
5|x|= 20, |x| means the absolute value of x, so ud use the inverse of a sum to put the variable on the left w/ no constants. So 1st ud divide each side of the equation by 5 which gives u the next line,
|x|= 4, and that's not simplified. So the final line/answer wud be
x=+/- 4
I'm sure I'm rite,i have an A+ in math, and we just studied this in depth.
2006-12-07 05:38:59 · answer #2 · answered by Luvley 1 · 0⤊ 0⤋
Divide by 5. You get the absolute value of x = 4. Since it's absolute value, x can either be 4 or -4, but that's it. Nothing inbetween.
2006-12-07 05:14:00 · answer #3 · answered by Tim D 2 · 1⤊ 0⤋
-4 or 4
2006-12-07 05:14:02 · answer #4 · answered by Liz S 2 · 1⤊ 0⤋
4 and -4 are the solutions.
2006-12-07 05:15:32
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answer #5
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answered by NvestR3322 2
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The answer stated as -4
Divide each side by 5 to get: |x|=4
Since absolute value function disregards the actual sign of the integer value, then: x = +/- 4
2006-12-07 05:19:56 · answer #6 · answered by Goyo 6 · 0⤊ 0⤋
x^2 - 3x -5 = 2 polishing off or use quadratic formula you will get an identical answer i did it already polishing off sq. x^2 - 3x = 7 divide 2 (x-3/2)^2 - 9/4 = 7 (x-3/2)^2 = 37/4 sq. root the two component x- 3/2 = +- sqrt 37/2 plus 3/2 the two edge of the equation x= 3+-sqrt 37 / 2 Quadratic formula x= -b +- sqrt b^2 -4ac /2a x= 3+-sqrt 37 / 2 So the respond of this question going to be l 3+-sqrt37/2 l<< this l here recommend absolute fee it is it
2016-12-11 04:10:41 · answer #7 · answered by Anonymous · 0⤊ 0⤋
x= +/- 4
2006-12-07 05:15:52 · answer #8 · answered by Anonymous · 0⤊ 0⤋
x=+/- 4
2006-12-07 05:13:59 · answer #9 · answered by snfcricket 3 · 1⤊ 0⤋
First, divide both sides by 5.
|x| = 4
At this point, whenever you take the "anti-absolute value" of both sides, you have to put "plus or minus" on the right hand side.
x = +/- 4
Therefore, your answers are x = 4, -4
2006-12-07 05:14:07 · answer #10 · answered by Puggy 7 · 0⤊ 0⤋