porfa alguien me puede ayudar con la comprobacion de:
9x -2x = 4
7x = 4
x = 4/7
9x -2x = 4
7x = 4
x = 4/7
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Verified answer
Respuesta:
Es verdadero.
Explicación paso a paso:
9x - 2x = 4
7x = 4
x = 4/7
x = 0.571428571
Comprobamos:
9(0.571428571) - 2(0.571428571) = 4
5.14285714 - 1.14285714 = 4
4 = 4 -> x es 4/7 o 0.571428571
Explicación paso a paso:
[tex] 4 \div 7 = 0.57[/tex]
(0,57 x 9) - (0,57 x 2)
(5,13) - (1,14)
4