Question

Help. again. please?

Answer 1

x=16

y=20

Step-by-step explanation in an attached file

Answer 2

x = 16, y = 20

Explanation:

7x + 4 + 5x - 16 = 180

7x + 5x + 4 - 16 = 180

12x - 12 = 180

12x / 12 - 12 / 12 = 180 / 12

x - 1 = 15

x = 15 + 1

x = 16

5x - 16 + 6y - 4 = 180

5x + 6y - 16 - 4 = 180

5x + 6y - 20 = 180

5x + 6y = 180 + 20

5x + 6y = 200

Substitute x = 16,

5 ( 16 ) + 6y = 200

80 + 6y = 200

6y = 200 - 80

6y = 120

y = 120 / 6

y = 20