Respuesta:
A. 5x + 6 = 21 5x = 21 - 6 5x = 15 x = 15 / 5 x = 3
B. -2x + 8 = -2
-2x = -2 -8 -2x = -10 x = -10 -2 x = -12
C. 6x + 2 = -16 6x = -16 -2
6x = -18 x = -18 +6 x = -12
D. 2x + 4 = 6 2x = 6 - 4 2x = 2 x = 2 / 2 x = 1
E. -4x - 6 = -2 4x = -2 -6 4x = -8
x = -8 +4 x = -4
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Respuesta:
A. 5x + 6 = 21
5x = 21 - 6
5x = 15
x = 15 / 5
x = 3
B. -2x + 8 = -2
-2x = -2 -8
-2x = -10
x = -10 -2
x = -12
C. 6x + 2 = -16
6x = -16 -2
6x = -18
x = -18 +6
x = -12
D. 2x + 4 = 6
2x = 6 - 4
2x = 2
x = 2 / 2
x = 1
E. -4x - 6 = -2
4x = -2 -6
4x = -8
x = -8 +4
x = -4
No se pueden poner comentarios xd