2a+5a+9a = 16a
4a2 - 9a + 5 = 4a2 - 4a -5a + 5 = 4a(a - 1) - 5(a - 1) = (4a - 5)(a - 1)
9a + 1
9a + 3b - 11a - 4b = -2a -b
4a - 2.1 = 9a + 5.4 4a - 9a = 5.4 +2.1 -5a = 7.5 -a = 1.5 a = -1.5
2a+5
2a+5a+9a = 16a
9a +8 -2a -3 -5a = 2a +5
9a +8 -2a -3 -5a = 2a +5
9a +8 -2a -3 -5a = 2a +5
4a2 - 9a + 5 = 4a2 - 4a -5a + 5 = 4a(a - 1) - 5(a - 1) = (4a - 5)(a - 1)
a + 3a + 5a = 180 9a =180 a = 20
9a + 1
9a + 3b - 11a - 4b = -2a -b
It is the same as: 9a -4a = 5a
4a - 2.1 = 9a + 5.4 4a - 9a = 5.4 +2.1 -5a = 7.5 -a = 1.5 a = -1.5
so 5a = -20 making a = -4