Resuelve las siguientes ecuaciones.
a) x + 3 = 7
b) 7 x + 4 = 10 - 3 x
c) 2 x + 3 = -x
d) 45 - x = 4 x+ 25
(Ayuda Porfa )
a) x + 3 = 7
b) 7 x + 4 = 10 - 3 x
c) 2 x + 3 = -x
d) 45 - x = 4 x+ 25
(Ayuda Porfa )
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X= 7-3
X= 4
B) 7X + 4 = 10 - 3 X
7X+3X=10-4
10X = 6
X= 6/10
X= 3/5
C) 2X + 3 = -X
2X+X=-3
3X= -3
X = -3/3
X= -1
D) 45 -X = 4X+ 25
45-25=4X+X
20=5X
X= 20/5
X= 4