“It’s not that I can’t do maths,” Leo muttered to his only ally, a crusty blob of blue tack he’d named Blobbert. “It’s that I can’t do their maths. They want it in their order, with their rounding, under their time limit.”
Frustrated, Leo did something he rarely did: he took out a real pencil and real paper. He wrote the equations:
He had subtracted -2y. But the y’s were already +2y and -2y. They cancel. That’s fine. But then—he stared at the constants. 16 plus 2? No. The elimination method means you add the equations if the y coefficients are opposites. But wait. If you add 16 and 2, you get 18. That’s correct. sparx. maths
He knew the method. Eliminate the y’s because they’re already opposites. Add the equations: 7x = 18. Wait. 16 plus 2 is 18, yes. So x = 18/7. That’s 2.571... The platform wanted three decimal places. He typed 2.571.
Sparx’s eyes turned into little red X’s. “Not quite! Remember to check your signs!” “It’s not that I can’t do maths,” Leo
Leo was not a champion. Leo was a Year 9 student who had accidentally dropped his textbook in a puddle three years ago and had been adrift in a sea of algebraic currents and geometric tides ever since.
Leo felt the world tilt. Negative y? That would mean 4x – 2y = 2 becomes 4*(2.571) – 2*(-4.143) = 10.284 + 8.286 = 18.57, not 2. That made no sense. Sparx was gaslighting him. He wrote the equations: He had subtracted -2y
Blobbert, being blue tack, said nothing.