a) x - 100 = 540
x = 540 + 100
x = 640
b) 10 + x = 100
x = 100 - 10
x = 90
c) 54 : x = 6
x = 54 : 6
x = 9
a, x - 100 = 540
x = 540 + 100
x = 640
b, 10 + x = 100
x = 100 - 10
x = 90
c,54 : x = 6
x = 54 : 6
x = 9
a) \(x-100=540\)
\(\Rightarrow x=540+100\)
\(\Rightarrow x=640\)
b) \(10+x=100\)
\(\Rightarrow x=100-10\)
\(\Rightarrow x=90\)
c) \(54:x=6\)
\(\Rightarrow x=54:6\)
\(\Rightarrow x=9\)
a) x - 100 = 540
x =640
b)10 + x = 100
x = 90
c) 54 : x = 6
x = 9
a) x - 100 = 540
x = 540 + 100
x = 640
b) 10 + x = 100
x = 100 - 10
x = 90
c) 54 : x = 6
x = 6 x 54
x = 324
\(x-100=540\)
\(\Rightarrow x=540+100\)
\(\Rightarrow x=640\)
a,x-100=540
x=540+100
x=640
b,10+x=100
x=100-10
x=90
c,54:x=6
x=54:6
x=9
a ) x - 100 = 540
x = 540 + 100
x = 640
b ) 10 + x = 100
x = 100 - 10
x = 90
c) 54 : x = 6
x = 54 : 6
x = 9