5a+5=6a-7
4a+8a = 12a 12a divided by 2 = 6a
2
2.8333
Add 8a to each side: -6a + 14 = 2 Subtract 14 from each side: -6a = -12 Divide each side by -6: a = 2. Job done.
-6a + 8 = 2 -6a = -6 a = 1
5a+5=6a-7
6a - 4 = -2(+ 4 on both sides)6a = 2(divide both sides by 6)a = 2/6a = 1/3
-10
6a + 4 = 5a - 2 means that 6a - 5a = -2 - 4 which gives a = -6
12
4a+8a = 12a 12a divided by 2 = 6a
12
2
2.8333
It equals 0.172 with the two repeating.
.5