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16-10-2021
Mathematics

contestada

13.
1
(3x - 16)
(6x + 7)
(11y - 32)

13 1 3x 16 6x 7 11y 32 class=

Respuesta :

16-10-2021

Answer:

x = 21

y = 15

Step-by-step explanation:

3x - 16 + 6x + 7 = 180

3x + 6x - 9 = 180

9x = 180 + 9

9x = 189/9

9x/9 = 189/9

x = 21

6x + 7 = 11y - 32

6(21) + 7 = 11y - 32

126 + 7 = 11y - 32

133 + 32 = 11y

165 = 11y

11y/11 = 165/11

y = 15

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