Toán Lớp 7: (2x – 3^2 ) =25
27/3x =3
mh cần rất gấp mong các bn giúp mh
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Toán Lớp 7: (2x – 3^2 ) =25
27/3x =3
mh cần rất gấp mong các bn giúp mh
Comments ( 2 )
2x – 9 = 25
2x = 25 + 9
2x = 34
x = 34 : 2
x = 17
$\frac{27}{3}$x = 3
x = 3 : $\frac{27}{3}$
x = $\frac{1}{3}$