Respuesta:
a b c d e f
Explicación paso a paso:
a) 3x = 21 b) x + 14 = 34 c) 7 - 2x = 29 d) x + 36 = 57
x = 21/3 x = 34 - 14 2x = 7 - 29 x = 57 - 36
x = 7 x = 20 2x = -22 x = 21
x = -11
e) x + (x +1) = 19 f) 8 + 4x = 30
2x = 19 -1 4x = 30 - 8
2x = 18 4x = 22
x = 18/2 x = 22/4
x = 9 x = 11/2
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Respuesta:
a b c d e f
Explicación paso a paso:
a) 3x = 21 b) x + 14 = 34 c) 7 - 2x = 29 d) x + 36 = 57
x = 21/3 x = 34 - 14 2x = 7 - 29 x = 57 - 36
x = 7 x = 20 2x = -22 x = 21
x = -11
e) x + (x +1) = 19 f) 8 + 4x = 30
2x = 19 -1 4x = 30 - 8
2x = 18 4x = 22
x = 18/2 x = 22/4
x = 9 x = 11/2