Question

por favorrrrr ajuda-me . valendo 40 pts ; simplifique as expressoes algebricas : a, 3A-4B+C+3+4A+3B-2C+2
B, MP+6-9MP-5+4MP
C, 5F-9G+9+7G-2F+3+2F-6G+9-7
Calcule o valor numerico das expressoes :
A) 2A-7B para a =2eB=-8
B) 4Y-6W+3 para Y=3 eW =5

Answer 1

a)3a+4a-4b+3b+c-2c+3+2
7a-b-c+5

b)mp-9mp+4mp+6-5
-8mp+4mp+1
-4mp+1

c)5f-2f+2f-9g+7g-6g+9+3+9-7
5f-8g+14

a)2.2-7.(-8)= 4+56=60
b)4.3-6.5+3= 12-30+3=-15