The goal is to solve for "a". Help, please?
2006-09-30 13:28:37 · 7 answers · asked by Irritated with Algebra 1 in Science & Mathematics ➔ Mathematics
a=(x-b)/(1-2b)
how did I get this?
x = a+b-2ab
x = a-2ab+b
x = a(1-2b) + b
x-b = a(1-2b)
(x-b)/(1-2b) = a
2006-09-30 13:32:53 · answer #1 · answered by No Mo 2 · 0⤊ 0⤋
Starting from:
x = a + b - 2ab
add (2ab - a - x) to both sides
x + 2ab - a - x = a + b - 2ab + 2ab - a - x
simplify
2ab - a = b - x
Factor a
a(2b - 1) = b - x
Divide by 2b-1
a = (b - x) / (2b - 1)
2006-09-30 20:38:40 · answer #2 · answered by mb5_ca 3 · 0⤊ 0⤋
FIrst, move the b over to the left with the x
x - b = a - 2ab
Next factor the a out of both terms on the right.
x - b = a(1 - 2b)
Now divide both sides by (1 - 2b)
(x - b) / (1 - 2b) = a
2006-09-30 21:29:16 · answer #3 · answered by whatthe 3 · 0⤊ 0⤋
x=a+b-2ab subtracting b from both sides,
= x-b=a+2ab take a out on the right hand side,
= x-b = a(1+2b) divide both sides by (1+2b)
x-b/(1+2b) = a
done
2006-09-30 20:38:41 · answer #4 · answered by Man_of_Aran 2 · 0⤊ 0⤋
x = a + b - 2ab
x - b = a - 2ab
x - b = a(1 - 2b)
a = (x - b)/(1 - 2b)
2006-09-30 23:06:14 · answer #5 · answered by Sherman81 6 · 0⤊ 0⤋
youre on youre own lol.
2006-09-30 20:44:17 · answer #6 · answered by Anonymous · 0⤊ 0⤋
x = (a-b) (a-b)
2006-09-30 20:32:31 · answer #7 · answered by Bet 2 · 0⤊ 1⤋