Salutare!!!
A)
[tex] \bf a + 250 = 400[/tex]
[tex]\bf a = 400 - 250[/tex]
[tex] \boxed{\bf a = 150}[/tex]
Verificare:
150 + 250 = 400 (adevărat)
B)
[tex]\bf b - 250 = 300[/tex]
[tex]\bf b = 300 + 250[/tex]
[tex] \boxed{\bf b = 550}[/tex]
Verificare:
550 - 250 = 300 (adevărat)
C)
[tex]\bf c + 204- 60 = 109[/tex]
[tex]\bf c + 144 = 109[/tex]
[tex]\bf c = 109 - 144[/tex]
[tex] \boxed{\bf c = - 35}[/tex]
Verificare:
-35 + 204 - 60 =
169 - 60 = 109 (adevărat)
