Question

Resultado: 8x +3y =10
2x +5y = -9

Answer 1

8x+3y=10

8x=10-3y

x=10/8-3/8y

x=5/4-3/8y

x=5/4-3/8y, y ∈ R

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2x+5y=-9

2x=-9-5y

x=-9/2-5/2y

x= -9/2-5/2y, y ∈ R