x:(1245+64-35+26)=100
x:1300=100
x=130000
b,x*(236-36)=2000
x*200=2000
x=2000:200
x=10
**** nha bạn phương Chi
a/
1245:x+64:x-35:x+26:x=100
=>(1245+64-35+26):x=100
=>1300:x=100
=>x=1300:100
=>x=13
236*x-x*36=2000
=>x*(236-36)=2000
=>x*200=2000
=>x=2000:200
=>x=10
a) 1245 : x + 64 : x - 35 : x + 26 : x = 100
(1245 + 64 - 35 + 26) : x = 100
1300 : x = 100
x = 1300 : 100
x = 13
b) 236 * x - x * 36 = 2000
(236 - 36) * x = 2000
200 * x = 2000
x = 2000 : 200 = 10
1
(1245+64-35+26)÷x=100
X=1300÷x=100
X=1300÷100x=
X=13