Question

3x + 4y - 4, para x=3 e y=-2

Answer 1

$3x + 4y - 4 \\ 3.3 + 4.( - 2) - 4 \\ 9 + ( - 8) - 4 \\ 1 - 4 \\ - 3$

Resposta: –3

Answer 2

3x + 4y - 4

x = 3 y = -2

3×3 + 4×(-2) - 4

9 + (-8) -4

9 + (-12)

9-12

-3