Question

tolong bantuannya ya, tysm

Answer 1

#MATH

#SPL

3x - 2y = 7 X2

2x + y = 14 X3

6x - 4y = 14

6x + 3y = 42

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-7y = -28

y = -28/-7

y = 4

substitusi y = 4

2x + y = 14

2x + 4 = 14

2x = 14 - 4

2x = 10

x = 10/2

x = 5

sehingga

-2x + 3y = -2(5) + 3(4) = -10 + 12 = 2 (D)