Respuesta:
D = x = 7
e = x = 3
Explicación paso a paso:
d) 5x - 9 = 3x + 5
5x-3x = 5+9
2x = 14
x = 14÷2
X = 7
Comprobación:
5x - 9 = 3x + 5
(5×7) - 9 = (3×7) +5
35-9 = 21+5
26 = 26
_____________________
e). 5x + 2=3x + 8
5x-3x = 8-2
2x = 6
x = 6÷2
X = 3
5x +2 = 3x + 8
(5×3) +2 = (3×3) +8
15+2 = 9+8
17 = 17
Espero te ayude...
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Respuesta:
D = x = 7
e = x = 3
Explicación paso a paso:
Respuesta:
d) 5x - 9 = 3x + 5
5x-3x = 5+9
2x = 14
x = 14÷2
X = 7
Comprobación:
5x - 9 = 3x + 5
(5×7) - 9 = (3×7) +5
35-9 = 21+5
26 = 26
_____________________
e). 5x + 2=3x + 8
5x-3x = 8-2
2x = 6
x = 6÷2
X = 3
Comprobación:
5x +2 = 3x + 8
(5×3) +2 = (3×3) +8
15+2 = 9+8
17 = 17
Explicación paso a paso:
Espero te ayude...