uprość wyrażenie
a) 6(a+2b)-3(2a-3b)
b) 4(b+3)+3(a-b)
c) 7(b+c)-3(b+2c)
d) 5(a+3)+26-3(a+b)
e) 6(3+z)=4(2z+4)+(8+z)
f) -4(2x-7-4y)-1(-y-x)
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a) 6a+12b-6a+9b=21b
b) 4b+12+3a-3b=3a+b+12
c) 7b+7c-3b-6c=4b+c
d) 5a+15+26-3a-3b=2a-3b+41
e) 18+6z+8z+16+8+z=15z+42
f) -8x+28+16y+y+x=-7x+17y+28
a)6(a+2b)-3(2a-3b)=6a+12b -6a+9b =21b
b) 4(b+3)+3(a-b)=4b+12+3a-3b=b+3a+12
c) 7(b+c)-3(b+2c) =7b+7c -3b-6c=4b-c
d) 5(a+3)+26-3(a+b)= 5a+15+26-3a-3b=2a-3b+41
e) 6(3+z)+4(2z+4)+(8+z)=18+6z+8z+16+8+z=15z+42
f) -4(2x-7-4y)-1(-y-x)=-8x+28+16y+y+x =17y-7x++28