Question

2 x + 3 y = 14 _ 4 × + 2 y = _ 2

Answer 1

Resposta:

2x+3y=14 x(-4)

4x+2y=2 x(2)

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-8x-12y=-56

8x+4y=4

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-8y=-52

y=-52/-8

y=13/4

2x+3*13/2=14

2x+39/2=14

4x+39=28

4x=28-39

4x=-11

x=-11/4

Explicação passo-a-passo: