Question

please check.
5x^2-5y^2=-35
5x^2 +2y^2=77 <<<< subtract?
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-7 y^2 = -112
y^2 = 16 --- y = +/-4

5x^2-5y^2=-35
5x^2-5(16)=-35
5x^2 = 45
x^2 = 9 --- x = +/- 3

solutions --- (4,3); (4,-3); (-4,3); (-4, -3)

Answer 1

yeah u did it right

Answer 2

thanks