Usuń nawiasy i wykonaj redukcję wyrazów podobnych.
a). 3(x + y) + 2(4x - y) + (x - 4y) =
b). 2(a-7b) +(-2b - 4b) + 5 (-a-b) + 8(3b - 2a) =
c). 4(2x + 3y) - 2(y-5x) - (-2y - x) + (-6x + 7y) =
d). -(-2b + c - 3) - 4(b + 3c - 6) - 3(2 - c + b) =
e). 12 (1/4t - 1/6w) - 24(1/6t + 1/4w) =
f). 4[(3x - 2y) - (4x + 3y)] - [(y-x) - 2(5x - 4y)]
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a 3*x+y+24x+x-4y
A
=3x+3y+8x-2y+x-4y=12x-3y
B
=2a-14b-2b-4b-5a-5b+24b-16a=-19a+27b
C
=8x+12y-2y+5x+2y+x-6x+7y=18x+19y
D
=2b-c+3-4b-12c+24-6+3c-3b=21-5b-10c
E
=3t-2w-4t-6w=-t-8w
F
=4(3x-2y-4x-3y)-(y-x-10x+8y)=12x-8y-16x-12y-y+x+10x-8y=7x-29y