Determina el valor de x:
-5(x+4)=20
-8(x-45)=2(x+2)
(menos) -(-2x-6)= -26
-5(x+4)=20
-8(x-45)=2(x+2)
(menos) -(-2x-6)= -26
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x+4=-20/5
x+4= -4
x = -8
-8(x-45)=2(x+2)
-4(x-45)= x+2
-4x -180=x+2
-180-2=x+4x
5x=-182
x= - 182/5
(menos) - (-2x-6)=-26
-2x - 6 = -26
-6+26=2x
20=2x
x=20/2
x=10