Question

Solve 1) 3X+5Y= -9; 2X+5Y=-11​

Answer 1

$3x + 5y = - 9 \\ - (2x + 5y = - 11) \\ x = 2$

substituting x is equal to 2 in equation 1

$3x + 5y = - 9 \\ 3 \times 2 + 5y = - 9 \\ 6 + 5y = - 9 \\ 5y = - 9 - 6 \\ 5y = - 15 \\ y = - 3$

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