(4x+3)(x+z)
Объяснение:
4x(x+z)+3(x+z)=(4x+3)(x+z)
(2/x-y) + (12/x+y) = 1 2/x-y+12/x+y=1 14/x=1 x=14 x=14
(6/x-y) - (20/x+y) = -11 6/x-y-20/x-y=-11 -14/x-2y=-11 -1-2y=-11 y=5
14+5=19
4а =10+3/12=13/12
4б=21-20/24=1/24
4г=5-6/7=29/7
6а=2-8=-6
6б=-4/7+12/5=64/35
6в=5/3-3×1/2=5/3-3/2=1/6