Question

Sendo (x + 2, y – 3) = (2x + 1, 3y – 1), determinar o valor de x + y.

Answer 1

(x + 2, y - 3) = ( 2x + 1 , 3y - 1)

x + 2 = 2x + 1

2 - 1 = 2x - x

1 = x

x = 1

y - 3 = 3y - 1

- 3 + 1 = 3y - y

- 2 = 2y

2y = - 2

y = -2/2

y = - 1

= x + y

= 1 - 1

= 0

R.: 0