\(a,\Rightarrow x=458+157=615\\ b,\Rightarrow x=25-14=11\\ c,\Rightarrow x-13=25\\ \Rightarrow x=25+13=38\\ d,\Rightarrow x=147-50=97\)
a) \(\Rightarrow x=458+157\Rightarrow x=615\)
b) \(\Rightarrow x=25-14\Rightarrow x=11\)
c) \(\Rightarrow x=11+14+13\Rightarrow x=38\)
d) \(\Rightarrow x=147-50\Rightarrow x=97\)
a)
x - 157 = 458
x = 458 +157
x= 615
b)
25-x=14
25-14=x
x=11
c)
x-13=11+14
x-13=25
x=25+13
x=38
d)
147-x=50
147-50=x
x=97
\(a,x-157=458\) \(b,25-x=14\)
\(x=458+157\) \(x=25-14\)
\(x=615\) \(x=11\)
Vậy x= 615 Vậy x=11
\(c,x-13=11+14\) \(d,147-x=50\)
\(x-13=25\) \(x=147-50\)
\(x=25+13\) \(x=97\)
\(x=38\) Vậy x=97
Vậy x=38