Question

10. Resolva as equações encontrando o valor das incógnitas:
a) 3. (2 − 3) − 3 + 12 = 27
b) 4 − 3 − + 8 = 11
c) 6. ( − 2) = 12
d) 9 + 2(5 − 4) = 21
e) 10 + 4. (3 − 2) − 6 = 8
f) 3. (5 + 3) + 5. (− − 1) = 22
g) 2. (9 − 4) − 7 + (6 − 5). 3 = 18
h) 2. ( + 3) − 5 = + 5
i) 4. ( + 1) = 5 + 3. (2 − )
j) 6 + 3(4 − ) = 2 + 15

Answer 1

Espero que ajude ,Boa sorte