elsyf264 elsyf264

16-03-2024
Mathematics

contestada

What is thw solution for 3x-2y=-21
2x+4y=18

Respuesta :

Domyooss Domyooss

16-03-2024

Answer:

x=-3, y=6

Step-by-step explanation:

transform the first one into: 6x-4y=-42

add up with 2x+4y=18

y is gone: 8x=-24

x=-3

then, bring x back to either of the two original

y=6

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