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a) 6(x-4)-2
6x-24-2
6x-26
b) 2(x+1)-3(x-1)
2x+2-3x+3
-x+5 /:(-1)
x+1
c) -3(y-2)+4(y+2)
-3y+6+4y+8
y+14
d) 5(x-y-1)-4(x+2)
5x-5y-5-4x-8
x-5y-13
e) 2(3a+b)-2(a-b)
6a+2b-2a+2b
4a+4b
f) ½(4x-4)-2x
2x-2-2x
-2
g) x(x-1)-3(x²-x)
x²-x-3x²+3x
-2x²+2x
h) 5a(a-3)-3a(a-5)
5a²-15a-3a²-15a
2a²
i) 3x(x+⅓y)-2y(½x-½)
3x²+y