Question

resolver las siguientes ecuaciones a)5 [2x-4 (3x+1)]=-10x+20 b)x-13=4 [3x-4 (x-2)] c)3 [6x-5 (x-3)]=15-3 (x-5 d)2x+3 (x-3)=6 [2x-3 (x-5)]

Answer 1

a.5(2@-12@+1)+10@=20
-50@+1+10@=20........... ..-40@=20-1
@=19/(-40)
b -4@[email protected]@=-45......@=-45/-3=15
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