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11x+5x-65x=-36+1
-49x= -35 (Multiplico por -1)
49x=35
x=35/49
b) 21-6x=27-8x
-6x+8x=27-21
2x=6
x= 6/2
x=3
c) 16+7x-5+x= 11x-3-x
7x+x-11+x= -16+5-3
-2x= -14 (Multiplico por -1)
2x=14
x=14/2
x=7
d) 3x+101-4x-33=108-16x-100
3x-4x+16x= -101+33+108-100
15x= -60
x= -60/15
x= -4