N100
a)5-a+3=8-a
b)7+12-2b=19-2b
c)64-14-7x=50-7x
d)38+12p-8=30+12p
N99
a)m+a-k-b
b)m-a+k+b
c)x+a+m-2
d)a-b+c+m+n
N98
a)x+b+c+d-m
b)a-b+c+d
c)x+y-b-c+m
d)x+a-b-c-d
N97
a)(8x+7x)-(6y+2y)=15x-4y
b)(27p-16p)+(14q-3q) = 11p+11q
c)(3,5b-0,7b)-(2,4c+0,6c)=2,8b-3c
d)(1,6a-2.8a)+(4x-7,5x)= -1,2a-3,5x
N96
a)(13a-2a)+(2b-b)=11a+b
b)(41x-58x)+(6y-y)= -17x+5y
c)(-5,1a-4,9a)-(4b-b)= -10a-3b
d)(7,5x-8,5x)+(y-3,5y)= -x-2,5y