Respuesta:
x = 5
Explicación paso a paso:
Resolver.
2x - 3 7
---------- = --------
x + 4 9
9(2x - 3) = 7(x + 4)
18x - 27 = 7x + 28
18x - 7x = 28 + 27
11x = 55
x = 55/11
Comprobación.
---------- = ------
2(5) - 3 7
---------- = -----
5 + 4 9
10 - 3 7
--------- = -----
9 9
7 7
--- = ------
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Respuesta:
x = 5
Explicación paso a paso:
Resolver.
2x - 3 7
---------- = --------
x + 4 9
9(2x - 3) = 7(x + 4)
18x - 27 = 7x + 28
18x - 7x = 28 + 27
11x = 55
x = 55/11
x = 5
Comprobación.
2x - 3 7
---------- = ------
x + 4 9
2(5) - 3 7
---------- = -----
5 + 4 9
10 - 3 7
--------- = -----
9 9
7 7
--- = ------
9 9