2007-05-10 12:56:28 · 9 answers · asked by StR@wBeRRy 2 in Science & Mathematics ➔ Mathematics
3a + 11 = 7a - 13
11 + 13 = 7a - 3a
24 = 4a
a = 6
2007-05-10 12:59:26 · answer #1 · answered by skm4usa 3 · 0⤊ 0⤋
3a+11=7a-13
-3a -3a
11=4a-13
+13 +13
24=4a
divide by 4 on each side and X=6
2007-05-10 20:40:31 · answer #2 · answered by luvin_chris_brown 2 · 0⤊ 0⤋
a = 6
2007-05-10 20:00:51 · answer #3 · answered by John 1 · 0⤊ 0⤋
3a+11=7a-13 subtract 3a from each side
11=4a-13 add 13 to each side
24=4a divide both sides by 4
6=a or
a=6
2007-05-10 20:09:00 · answer #4 · answered by yupchagee 7 · 0⤊ 0⤋
3a-3a+11+13=7a-3a-13+13 ... (-3a+13) on both side
24 = 4a
24/4 = 4a /4 ... divided by 4 each side
a = 6
2007-05-10 20:01:50 · answer #5 · answered by cmui1978 5 · 0⤊ 0⤋
3a+11=7a-13
Combine terms.
-4a = -24
or
4a = 24
a = 6
.
2007-05-10 20:00:05 · answer #6 · answered by Robert L 7 · 0⤊ 0⤋
3a+11=7a-13
3a-3a+11=7a-3a-13
11=4a-13
11+13=4a-13+13
24=4a
6=a
2007-05-10 20:30:55 · answer #7 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
24= 4a
a = 6
2007-05-11 13:37:38 · answer #8 · answered by Como 7 · 0⤊ 0⤋
4a=24,
|||a=6|||
2007-05-10 20:00:09 · answer #9 · answered by Dr Z 2 · 0⤊ 0⤋