ocr: d+QD=b Solve: cedta.D=e d=-Q-0+b Solve the first equation for the variable with the d+d-D-e e coerticient of 1. 4-a-0+b)+d-0-e variable substitute into the the other expression equation. forthe D= - e-bc Solve the resulting equation. d-ac Elimination by Substitution-Schematic process Elimination by Substitution-Example
