what is the value of a?
2007-06-13 13:37:13 · 11 answers · asked by Korina O 2 in Science & Mathematics ➔ Mathematics
7 + 8a + 60 = -13
8a = -13 - 67
8a = -80
a = -10
2007-06-13 13:45:55 · answer #1 · answered by Sunny Grewal 2 · 1⤊ 0⤋
7+4(2a+15) =-13
7+8a +60 = -13
8a+67=-13
8a = -13 - 67
8a = -80
a = -10
2007-06-13 21:04:25 · answer #2 · answered by Kimchie 2 · 0⤊ 0⤋
A= -10
2007-06-13 20:46:47 · answer #3 · answered by Jethro 2 · 0⤊ 0⤋
7+4(2a+15) = -13
7+ 8a+ 60 = -13
8a = -80
a = -10
2007-06-13 20:47:23 · answer #4 · answered by kenraya_3686 2 · 0⤊ 0⤋
7+4(2a+15) = -13
7+ 8a+ 60 = -13
8a = -80
a = -10
2007-06-13 20:46:08 · answer #5 · answered by beejin 4 · 0⤊ 0⤋
a = -10
7+ 4(2a+15) = -13
7+8a+60 =-13
8a=-80
2007-06-13 20:47:34 · answer #6 · answered by holdencaufield 2 · 0⤊ 0⤋
first multiply 4X2a +15 this = 8a + 60, so then you have:
7+8a + 60 = -13, 8a +67 = -13
now you subtract: 8a= -13 -67, 8a = -80, now divide:
8a /8 = -80/8 , therefore a= -10
hope you understood all that!
2007-06-13 20:45:51 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Hi,
First, distribute the 4 over the factor 2a+15 to give you:
7 + 8a + 80 = -13
Simplify the left side of the equation:
8a + 87 = -13
Now subtract 87 from both sides
8a = -103
Then divide by 8:
a = -12.875
I hope that helps you out! Please let me know if you have any other questions!
Sincerely,
Andrew
2007-06-13 20:42:05 · answer #8 · answered by The VC 06 7 · 0⤊ 1⤋
The above agm06002 answer is basically true except that there is an error in it. 4 x 15 is 60 not 80.
2007-06-13 20:46:21 · answer #9 · answered by megalomaniac 7 · 0⤊ 0⤋
7 + 8a + 60 = - 13
8a = - 80
a = - 10
2007-06-14 08:20:44 · answer #10 · answered by Como 7 · 0⤊ 0⤋