Question

solved this sum method of cross multiplication:.

$8x + 5y = 11 \\ 3x - 4y = 10$

Answer 1

$4(8x + 5y) = 11 \times 4 \\ 5(3x - 4y) = 10 \times 5 \\ \\ \\ \\ 32x + 20y = 44 \\ 15x - 20y = 50 \\ add \: eq \\ 32x + 15x + 20y - 20y = 50 + 44 \\ 47x =94 \\ x = 2 \\ \\ 3x - 4y = 10 \\ 3(2) - 4y = 10 \\ 6 - 4y = 10 \\ 10 - 6 = 4y \\ 4 = 4y \\ y = 1 \\ \\ x = 2 \\ y = 1 \: \: values$
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