4(3x - 5) = 12x - 20
5(8m + 2) = 40m + 10
-2(5t + 8) = -10t -16
-3(2a - 7) = -6a + 21
(15a + 20) : 5 = 3a + 4
(12p - 20) : 5 = 12p-20/5
(-21m - 15) : 3 = -7m - 5
(10t - 6) : (-2) = -5t + 3
12a + 142 = 2(6a + 71)
20p - 55 = 5(4p - 11)
14p - 21-7 = 14(p - 2)
-18x + 24 - 3 = -3(6x - 7)
4(3a + 5) + 3(5a - 2) = 27a + 14
2(7p - 3) - 5(3p - 1) = -p - 1
-5(2 - 3m) - 2(m + 8) = -26 + 13m
2x(3x - 4) + x(5 - 2x) = x * (4x - 3)
3u(2 - 4u) - 5u(u+3) = u * (-9 - 17u)
-5t(2t - 1) - 2t(3 - 5t) = -t
5x + 4 - 3(x - 6) = 2x + 22
-3z + 2 - 4(2z - 3) = -11z + 14
2y + 4(1-3y) = 2(-5y + 2)
3a - 1 - 2(3a - 6) = -3a + 11
-2x(x - 8y + 7) = -2 x *potęga druga* + 16 x y - 14x
3(a + b) - 4(a - b) - 5(2a - 4b) = -11a + 27b
2(3x - 4y + 5) - 3(-6x + 5y - 7) = 24x - 23y + 31
4a(2a - 3b + 9c - 12) = 8a*potęga druga* - 12ab + 36 ac - 48a
