Question

-2 X + 3y = -9 dan 4 x - 5 = 15​

Answer 1

Verified answer

Jawab:

-2x + 3y = -9

4 x - 5 = 15

4x - 5 = 15

4x = 15 + 5

4x = 20

x = 20/4

x = 5

substitusi nilai x

-2x + 3y = -9

-2(5) + 3y = -9

-10 + 3y = -9

3y = -9 + 10

3y = 1

y = 1/3

jadi, nilai x adalah 5 dan nilai y adalah 1/3