|8 + 5a| = 14 - a? | fedest.com

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|8 + 5a| = 14 - a?

2006-10-11 09:59:08 · 4 answers · asked by twinkie 1 in Science & Mathematics ➔ Mathematics

4 answers

The absolute value sign means
either
8 + 5a = 14 - a
or
-(8 + 5a) = 14 - a

Let's solve the first equation:
8 + 5a = 14 - a
5a + a = 14 - 8
6a = 6
a = 1

Now the second equation:
-(8 + 5a) = 14 - a
-8 - 5a = 14 - a
-5a + a = 14 + 8
-4a = 22
a = -22/4 or -11/2

Your solutions are:
x = 1, -11/2

2006-10-11 10:12:51 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Solve 8+5a=14-a, and then 8+5a=-(14-a) = a-14.

2006-10-11 10:12:07 · answer #2 · answered by James L 5 · 0⤊ 0⤋

two answers for a

8+5a=14-a
6a=6
a=1

AND

-(8+5a)=14-a
-8-5a=14-a
-4a=22
a= -5.5 or -22/4 or -11/2 (same answer)

2006-10-11 11:03:33 · answer #3 · answered by xneration 1 · 0⤊ 0⤋

8:00 AM

2017-01-11 14:21:54 · answer #4 · answered by ? 4 · 0⤊ 0⤋