Question

Determinar os valores de "a" e de "b":
A) (a,1) = (1,b)
B) (2a,5) = (4,b)
C) (3a+2,4b-1) = (-7,7)

Answer 1

basta igualar os valores:

a) a=1; b=1

b) 2a=4--> a=2; b=5

c) 3a+2=-7--->3a=-9--->a=3;  4b-1=7--->4b=8--->b=2