\(4 ⋅ -6 p = -24 p\)

\(4 x ⋅ 5 y = 20 x y\)

\(-2 a ⋅ -5 b = 10 a b\)

\(2 x ⋅ 3 x = 6 x^{2}\)

\(5 a ⋅ 3 b ⋅ 4 c = 60 a b c\)

\(-4 a ⋅ b ⋅ -5 a = 20 a^{2} b\)

\(6 x + x = 7 x\)

\(8 a b + 6 a b = 14 a b\)

\(6 p + 8 p + 7 p = 21 p\)

Kan niet korter.

\(0 ⋅ a = 0\)

\(-6 x ⋅ -9 x y = 54 x^{2} y\)

\(3 q ⋅ 2 ⋅ 5 p q = 30 p q^{2}\)

\(a + a + a + a + a + a + a = 7 a\)

\(2 a - 9 a = -7 a\)

\(-8 x - 7 x = -15 x\)

\(-4 a b - 7 a b = -11 a b\)

\(0 - 2 x = -2 x\)

Kan niet korter.

\(-5 a + 5 a = 0\)

\(9 p + 6 q + 8 p = 17 p + 6 q\)

\(-4 a + 9 b + 8 b = -4 a + 17 b\)

\(-7 x + 2 y + 9 x + y = 2 x + 3 y\)

\(-7 x + 6 - 4 x + 1 = -11 x + 7\)

\(a + -6 b + 8 a = 9 a - 6 b\)

\(-9 x - -4 x - 2 y = -5 x - 2 y\)

\(-x + 6 x y + 9 y - 3 x y = -x + 9 y + 3 x y\)

\(-4 p q + 8 q + p q - 8 q = -3 p q\)