Solving the following equation, show all working.
2007-05-15 15:32:39 · 16 answers · asked by ebneter_chick 1 in Science & Mathematics ➔ Mathematics
4a=13+7
4a=20
a=5.
2007-05-15 15:35:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
4a-7=13 add 7 to each side
4a=20 divide both sides by 4
a=5
2007-05-15 15:41:44 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋
4a-7=13
+7 +7
4a=20
4/4=20/4
a=5
2007-05-15 15:46:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋
4a-7=13. 4a=13+7. 4a=20. a=20\4. a=5
2007-05-15 15:40:47 · answer #4 · answered by Dr. Eddie 6 · 0⤊ 0⤋
4a-7=13
add 7 to both sides 4a-7+7=13+7
4a=20 divide by 4 on each side.
a=5
2007-05-15 15:38:03 · answer #5 · answered by Ash 1 · 0⤊ 0⤋
4a-7=13
add 7 from both sides
making it
4a=20
then divide by 4 on both sides
4a/4=20/4
a=5
2007-05-15 15:37:47 · answer #6 · answered by icemoon 2 · 0⤊ 0⤋
Get "a" by itself. Just add 7 to both sides, then divide both sides by 4. Voila.
4a - 7 = 13
4a = 20
a = 20/4
a = 5
2007-05-15 15:36:50 · answer #7 · answered by Anonymous · 0⤊ 0⤋
5/4(4a - 7) = -3/2a (4a - 7) = -6/5a 26/5a = 7 a = 35/26 = a million 9/26 = a million.346.. Checking: LHS 5/4(4*35/26 - 7) = 5/4(70/13 - 7) = a hundred seventy five/26 - 35/4 = -one hundred and five/fifty two RHS -3/2 x 35/26 = -one hundred and five/fifty two consequently, LHS = RHS
2016-11-04 01:51:35 · answer #8 · answered by atalanta 4 · 0⤊ 0⤋
4a-7+7=13+7
4a=20
a=20/4
a=5
2007-05-15 15:39:53 · answer #9 · answered by chaand 1 · 0⤊ 0⤋
4a-7+7=13+7
4a+0=20
4a=20
a=20/4
a=5
2007-05-15 17:45:12 · answer #10 · answered by shiva 3 · 0⤊ 0⤋
4a-7=13
4a=13+7
4a=20
a=20/4
a=5
2007-05-15 19:42:25 · answer #11 · answered by sam 3 · 0⤊ 0⤋