0.4n = -21 - n? | fedest.com

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0.4n = -21 - n?

What is "n"?

2006-11-08 11:53:44 · 4 answers · asked by † NEO † 2 in Science & Mathematics ➔ Mathematics

4 answers

0.4n = -21 - n
equation

1.4n=-21
add 1n on each side

n=-15
divide both sides by 1.4

2006-11-10 18:44:45 · answer #1 · answered by Raina 2 · 0⤊ 0⤋

n is just a variable like x, consider the equation 0.4x=-21-x then get all the x's on one say now its basic algera. 0.4x+x=-21, so 0.5x=-21 then x=-21/0.5, then break it down from there hope this helps u

2006-11-08 19:58:13 · answer #2 · answered by dreamz 4 · 0⤊ 1⤋

.4n= -21-n

now, move -n to the other side, so

1.4n=-21

now, divide -21 by 1.4, so you have

n=-21/1.4

thus,

n=-15

2006-11-08 20:44:35 · answer #3 · answered by Christie 3 · 1⤊ 0⤋

n = -15

2006-11-08 20:07:45 · answer #4 · answered by kiki Dee 5 · 0⤊ 1⤋