+ (-2) = \frac-ba \Rightarrow 1 = \frac-b1 \Rightarrow b = -1 - AMAZONAWS
Mastering the Algebra of Linear Equations: Proving +(-2) = −(−2) = −b ⇒ 1 = −b ⇒ b = −1
Mar 11, 2026
Mastering the Algebra of Linear Equations: Proving +(-2) = −(−2) = −b ⇒ 1 = −b ⇒ b = −1
