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b) -1
c) 7x-3y
d) 6x-4
e)-2y-11
f) -5a-b
g) 1/2-3x+2t
a) 246
b) 36
B)x-2x+3+x-4=-1
c)3x-y+4x-2y=7x-3y
d)2x-6+4x+2=6x-4
E)3y-5-5y-6=-2y-11
f) -2a+2b-3a-3b=-5a-b
g)1/2-2x+3t-x-t=-3x+2t+1/2
a)100x
B)36x