s253185 s253185

08-02-2022
Mathematics

contestada

Solve Using Substitution.
PLS SHOW ALL YOUR WORK!!!
60 POINTS!!!
x + y = 12
-5x + 6y = -5

Respuesta :

mhanifa mhanifa

08-02-2022

Answer:

(7, 5)

Step-by-step explanation:

Given system:

x + y = 12
-5x + 6y = -5

Substitute:

x = 12 - y

- 5(12 - y) + 6y = - 5
- 60 + 5y + 6y = - 5
11y = 60 - 5
11y = 55
y = 5

Find x:

x = 12 - 5 = 7

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