5) Simplifique as expressões algébricas a seguir. a) 2b-b+5bb)7c-2c-8c+10dc)7m-3md)-5+3t-7-12t+5e)-5xy+3xy-7+2x-12-2x
5) Simplifique as expressões algébricas a seguir. a) 2b-b+5b
b)7c-2c-8c+10d
c)7m-3m
d)-5+3t-7-12t+5
e)-5xy+3xy-7+2x-12-2x
1 Resposta
a) 2b -b +5b =
/ |
b +5b =
/
6b
b) 7c -2c -8c +10c =
/ /
5c +2c =
/
7c
c) 7m -3m =
/
4m
d) -5 +3t -7 -12t +5 =
+3t -12t -5 -7 +5 =
/ /
-9t -7
e) -5xy +3xy -7 +2x -12 -2x =
-5xy +3xy +2x -2x -7 -12 =
/ / /
-2xy 0 -19 =
-2xy -19
Explicação passo-a-passo:
