2007-02-22 11:44:52 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
First: eliminate parenthesis - distribute the outer negative sign with the terms in the 2nd set of parenthesis.
6a - 54 - 5a + (-27) = 23
6a - 54 - 5a - 27 = 23
Sec: combine "like" terms.
6a - 5a - 54 - 27 = 23
a - 54 - 27 = 23
a - 81= 23
Third: isolate "a" on one side - add 81 with both sides.
a - 81 + 81 = 23 + 81
a = 23 + 81
a = 104
2007-02-22 11:58:23 · answer #1 · answered by ♪♥Annie♥♪ 6 · 0⤊ 1⤋
(6a-54)-(5a+27)=23
6a-54-5a-27=23
a= 23+54+27
a=104
2007-02-22 20:05:12 · answer #2 · answered by emilia_3272 2 · 0⤊ 0⤋
distribute the negative into the second term to get
6a-54-5a-27=23
simplify the left side
1a-81=23
move the 81 to the right
1a= 104
or
a=104
2007-02-22 19:48:49 · answer #3 · answered by stalkssl 2 · 0⤊ 0⤋
6a - 54 - 5a - 27 = 23
a - 81 = 23
a = 104
2007-02-22 19:47:50 · answer #4 · answered by richardwptljc 6 · 0⤊ 0⤋
6a-54-5a-27=23
a-81=23
a-81+81=23+81
a=104
2007-02-22 20:04:22 · answer #5 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
6a-54-5a-27=23
a-81=23
a=104
2007-02-22 19:56:36 · answer #6 · answered by boyettsix 1 · 0⤊ 0⤋
a=81
(6a-54)-(5a+27)=
6a-54-5a-27=
6a-5a-54-27=
1a-81=
(a-81)+81=81
a=81
2007-02-22 19:54:27 · answer #7 · answered by BILL@CA 5 · 0⤊ 0⤋