Respuesta :

Answer:

13

Step-by-step explanation:

Given:

  • y = 5
  • x = 2

To evaluate:

20 - (3y - 4x)

Solution:

1) write the expression in terms of x and y

==> 20 - (3y - 4x)

2) Substitute y and x for their said values

==> 20 - ((3 × 5) - (4 × 2))

3) Solve

==> 20 - (15 - 8)

==> 20 - 7

= 13