kashwell215 kashwell215

25-01-2022
Mathematics

contestada

2x - y=17 and x-y=10
Solve with substitution, show work?

Respuesta :

semsee45 semsee45

25-01-2022

Answer:

x = 7 y = -3

Step-by-step explanation:

x - y = 10 ⇒ x = 10 + y

Substitute x = 10 + y into 2x - y = 17:

2(10 + y) - y = 17

20 + 2y - y = 17

y = -3

Substitute the found value of y into x = 10 + y to find x:

x = 10 - 3 = 7

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