a)
75 X(x+157)=24450
x+157 =24450:157
x+157 =326
x =326-7
x =319
b)41846: (x-384)=98
x-384 =41846:98
x-384 =427
x =427+384
x =811
x-384 =
a) 75 x ( X + 157 ) = 24450
X + 157 = 24450 : 75
X + 157 = 326
X = 326 - 157
X = 169
Vậy X = 169
b) 41846 : ( X - 384 ) = 98
X - 384 = 41846 : 98
X - 384 = 427
X = 427 + 384
X = 811
Vậy X = 811
a, 75×(x+157)=24450
x+157 =24450:75
x+157=326
x= 326-157
x=169
b,41846÷(x--384)=98
x-384=41846÷98
X-384=427
X=811
a/
x=169-157
x=169 mới đúng nha pn
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