2007-01-06 00:20:27 · 15 answers · asked by Richard C 1 in Science & Mathematics ➔ Mathematics
7a/15 = 35-6 = 29
a = 29*15/7
a = 435/7
a = 62.142857 ~ 62.14
_____________ ______________ ___________ _____________
If its
(6+7a)/15=35
6 + 7a = 35*15
6 + 7a = 525
7a = 519
7a = 519/7
a = 74.142857 ~ 74.14
2007-01-06 00:22:49 · answer #1 · answered by Som™ 6 · 0⤊ 1⤋
First: eliminate the fraction > multiply the denominator by everything >
15(6) + 15(7a/15) = 15(35)
Sec: cancel "like" terms and combine the remaining terms >
15(6) + 7a = 15(35)
90 + 7a = 525
Third: subtract 90 from both sides >
90 - 90 + 7a = 525 - 90
7a = 435
Fourth: solve for "a" by isolating it on one side > divide everything by 7 >
7a/7 = 435/7
a = 435/7
*The fraction can't be simplified into lowest terms & you don't need to change it into a decimal.
2007-01-06 15:28:12 · answer #2 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
how see below
if the equation is
(6+7)a / 15=35
(6+7)a *15 / 15=35*15 comes to (6+7)a=15 *35
(6+7)a=15 *35
(6+7)a / (6+7)a=15 *35 / (6+7)a goes to "a =15 *35 / (6+7)"
or
f the equation is (6 + 7a)/15 = 35...
Multiply both sides by 15 to get rid of the fraction.
6 + 7a = 525
Subtract 6 from both sides
7a = 519
Divide each side by 7
a = 74.14
2007-01-06 08:57:23 · answer #3 · answered by Raoof 2 · 0⤊ 0⤋
Subtract 6 from both sides:
7a/15=35-6
7a/15=29
Multiply 15 from both sides:
15(7a/15)=15(29)
7a=435
Divide 7 from both sides:
a=435/7 or 62 1/7
Check:
6+7(435/7)/15=35
6+(435/15)=35
6+29=35
35=35
2007-01-06 13:17:08 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Is 7a/15 a fraction? Should it be (6a +7a)/15?
If 7a/15 is a fraction....
6 + 7a/15 = 35
Since you have a fraction, multiply the entire equation by 15.
90 + 7a = 525
Subtract 90 from both sides
7a = 435
Divide both sides by 7
a = 62.14
--------------
If the equation is supposed to be (6 + 7a)/15 = 35...
Multiply both sides by 15 to get rid of the fraction.
6 + 7a = 525
Subtract 6 from both sides
7a = 519
Divide each side by 7
a = 74.14
hope that helps!
2007-01-06 08:25:52 · answer #5 · answered by Anonymous :) 5 · 1⤊ 0⤋
7a/15 =29
7a = 15 x 29
7a = 435
a = 435/7
2007-01-06 08:36:56 · answer #6 · answered by Como 7 · 1⤊ 0⤋
6 + 7a/15 = 35
7a/15 = 35 - 6
7a/15 = 29
7a = 29 *15
7a = 435
a =435/7
a = 62.14
2007-01-06 09:18:40 · answer #7 · answered by lovelace 2 · 1⤊ 0⤋
a=[35-6]*15/7
a=29*15/7
a=435/7
2007-01-06 08:34:46 · answer #8 · answered by Bill Scoupt 1 · 1⤊ 0⤋
<6x15>+7a=35x15
90+7a=525
525-90=7a
435=7a
a=435/7
a=62.142857
2007-01-06 11:16:21 · answer #9 · answered by Anonymous · 1⤊ 0⤋
6+7a/15=35
7a/15=35-6
7a/15=29
7a=29*15
7a=435
a=435/7
a=62 1/7 or 62.142
2007-01-06 08:24:32 · answer #10 · answered by atlantis noa 1 · 2⤊ 0⤋