-4x - 7 - 3x + 4 = 25
x = -4
(-4, 1) and (-2, -5)
m = -3
-21xy - 7xy
-28xy
(9x - 5y) + (3x + 2y - 7)
12x - 3y - 7
14x + 35
7(2x + 5)
70 = -7(3x - 1)
x = -3
(4, 9) and (1, 6)
m = 1
(3x2)(6xy5)
18x3y5
(x2 - 4x + 3) + (3x2 - 3x - 5)
4x2 - 7x - 2
18x2 + 42
6(3x2 + 7)
11 - x = 51 - 6x
x = 8
(4, -7) and (-1, -7)
m = 0
(2a4b3c)4
16a16b12c4
(6a2 - 5a) + (a - 5a + 3a3)
3a3 + 6a2 - 9a
x2 + 7x + 10
(x + 5)(x + 2)
9(x - 3) + 3x = 7x + 43
x = 14
(3, -3) and (-9, 5)
m = -2/3
(-3a6b2)3 + 12a18b6
-15a18b6
(3m2 + 7m - 1) - (m2 + 2m - 5)
2m2 + 5m + 4
m2 + 11m + 28
(m + 7)(m + 4)
7(x + 3) + 9 = 5(x - 2) - 3x
x = -8
(5, 4) and (5, -7)
m = undefined
(5m2)(7m3n7) + (2m2n7)(m11n2)
35m5n7 + 2m13n9
(12 + 8k3 + 3k - 4k2) + (5k3 + 15 - k + 2k2)
13k3 - 2k2 + 2k + 27
c2 + 4c - 45
(c + 9)(c - 5)