persamaan linear 2x - 5y = -21 dan 3x + 2y = -3 nilai dari 4x + 6y

- SPLDV -

2x-5y = -21 x 3
3x+2y = -3 x 2

6x-15y=-63
6x+4y=-6
----------------- (-)
-19y = -57
y = 3

2x-5y = -21
2x-5(3) = -21
2x-15 = -21
2x = -6
x = -3

Maka, 4x+6y = 4(-3)+6(3) = -12+18 = 6

semoga membantu
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-vin

2x-5y=-21/3/6-15=-63
3×+2y=-3/2/6+4=-6
11=69
x=69:11
2x-5y=-21
2x-5×6=-21
2x-30=-21
2x=-21+30