Respuesta:
x = 4
Explicación paso a paso:
7 + x = 2x + 3
x - 2x = 3 - 7
-x = -4
7-3 = 2x-x
4 = x
-(-x) = -(-4)
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Respuesta:
x = 4
Explicación paso a paso:
7 + x = 2x + 3
x - 2x = 3 - 7
-x = -4
x = 4
Respuesta:
7 + x = 2x + 3
7-3 = 2x-x
4 = x
-x = -4
-(-x) = -(-4)
x = 4
Explicación paso a paso: