Quote (remco6 @ May 7 2018 01:44pm)
Really , I can remember solving for unknowns in grade 4 or 5
It's because it's a system of linear equations
Notice how post 4 wrote TWO equations from the situation? We are finding where the two equations intersect (graphically) or where they are equal (algebraic)
Basic ones are introduced in 8th grade
More advanced in 9th
Then nonlinear in 10-11
Transcendental in 12
This is more than just solving for an unknown.
This post was edited by brigadier on May 8 2018 12:40am