(2x/10 + 5x/10) + 9 = 23
7x/10 + 9 = 23
7x/10 = 14
7x = 140
x = 20
Respuesta:
20
Explicación paso a paso:
7x +90/10 = 23
7x + 90 = 230
7x = 230 - 90
7x=140
x=20
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(2x/10 + 5x/10) + 9 = 23
7x/10 + 9 = 23
7x/10 = 14
7x = 140
x = 20
Respuesta:
20
Explicación paso a paso:
(2x/10 + 5x/10) + 9 = 23
7x/10 + 9 = 23
7x +90/10 = 23
7x + 90 = 230
7x = 230 - 90
7x=140
x=20