Please Solve this maths equation showing working. First correct answer will be awarded 10pts for best answer autmatically. Thanks
5y-2=7y+4
2007-05-07 02:12:23 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
first collect terms together
5y - 7y = 4 + 2
simplify
-2y = 6
divide by -2
y = 3
2007-05-07 02:21:14 · answer #1 · answered by Marianne D 2 · 1⤊ 1⤋
First put the like-terms together like this;
5y-2 =7y +4
5y -7y= 4+2
-2y = 6
y= 6/-2
y=-3
bye hope that this helps.
2007-05-07 02:50:22 · answer #2 · answered by Anonymous · 1⤊ 0⤋
5y - 2 = 7y + 4
- 2 = 2y +4 (-5y from both sides)
0 = 2y + 6 ( +2 on both sides)
0 - 6 = -6
2y = -6
Thus, y = -3
2007-05-07 02:22:54 · answer #3 · answered by Misumi Nagisa 1 · 1⤊ 0⤋
5y-2=7y+4 , 5y-7y=2+4 ,5y-7y=6 , -2y=6 ,y=-3
2007-05-07 02:30:11 · answer #4 · answered by anamaria s 1 · 1⤊ 0⤋
y= -3
2007-05-07 02:21:14 · answer #5 · answered by Anonymous · 1⤊ 0⤋
7y-5y=-2-4 so 2y=-6 so y=-3
2007-05-07 02:20:59 · answer #6 · answered by santmann2002 7 · 1⤊ 0⤋
5y - 2 = 7y + 4
5y - 2 (+2) = 7y + 4 (+2)
5y = 7y + 6
5y (- 7y) = 7y (- 7y) + 6
-2y = 6
-2y ( /-2) = 6 ( /-2)
y = -3
i hope thats right... hehe
2007-05-07 02:25:19 · answer #7 · answered by jay.em.ay 2 · 1⤊ 0⤋
5y-2 = 7y+4
-2-4=7y-5y
-6=2y
y=-6/2
y=-3
damn easy! :)
2007-05-07 02:23:32 · answer #8 · answered by Anonymous · 1⤊ 0⤋
S = students C = classes S/C = students per class room S/C = 6^2 6^4/C =6^2 6^4/6^2 =C 6^2 =C 36 =C
2016-05-17 09:01:36 · answer #9 · answered by ? 3 · 0⤊ 0⤋
y=-3 (negative 3)
2007-05-07 02:20:51 · answer #10 · answered by chris_afgirl 2 · 1⤊ 0⤋