2006-10-09 14:20:21 · 7 answers · asked by jami 1 in Science & Mathematics ➔ Mathematics
multiply through by a
2/3 - 3a/4 = 3/4
- 3a/4 = 1/12
Multiply by 4
- 3a = 1/3
Divide by -3
a = -1/9
2006-10-09 14:23:39 · answer #1 · answered by polloloco.rb67 4 · 0⤊ 0⤋
Get a common denominator by multiplying both sides by 12:
12(2/3 a) - 12(3/4) = 12 (3/4 a)
8a - 9 = 9a
simplify
-a = 9
a = -9
2006-10-09 21:25:02 · answer #2 · answered by Anonymous · 0⤊ 1⤋
(2/3)a - 3/4 = (3/4)a Assuming this is what you meant:
First, multiply everything by 12 so that the fractions drop out:
8a - 9 = 9a
then combine like terms and isolate the variable terms on one side:
-9 = 9a - 8a
-9 = a
a = -9
2006-10-09 21:28:04 · answer #3 · answered by Rozz 3 · 0⤊ 0⤋
2/3a - 3/4a = 3/4
0.0833 a = 3/4
a = 0.892857143
2006-10-09 21:26:10 · answer #4 · answered by estee06 5 · 0⤊ 0⤋
a=-9
2006-10-09 21:50:11 · answer #5 · answered by Dwight D J 5 · 0⤊ 0⤋
if by this you mean
(2/3)a - (3/4) = (3/4)a
Multiply everything by 12
8a - 9 = 9a
-a = 9
a = -9
ANS : -9
2006-10-10 00:38:23 · answer #6 · answered by Sherman81 6 · 0⤊ 0⤋
x34 blow me
2006-10-09 21:21:59 · answer #7 · answered by mobileminiatures 5 · 0⤊ 0⤋