Use substitution to solve.2x² = 5 + y4y = -20 + 8x²Solve the first equation for y and substitute it into the second equation. The resulting equation is .

From 2x² = 5 + y, subtract 5 to get y = 2x² − 5. Substitute this into 4y = −20 + 8x²: 4(2x² − 5) = −20 + 8x², which simplifies to 8x² − 20 = −20 + 8x². This is choice B.

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