a
=> \(x+2=\dfrac{484}{44}=11\)
=> x = 11 - 2 = 9
b
=> \(x+321=34.12=408\)
=> x = 408 - 321 = 87
c
=> \(x-210=246.15=3690\)
=> x = 3690 + 210 = 3900
d
=> \(205-x=\dfrac{420}{84}=5\)
=> x = 205 - 5 = 200
a: =>x+2=11
=>x=9
b: =>x+321=408
=>x=87
c: =>x-210=3690
=>x=3900
d: =>205-x=5
=>x=200