連立 れんりつ方程 ほうてい しきではありませんでした
renritsu hōteishikidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 連立方程式

1. Was not a system of equations.; Was not simultaneous equations.

Past/Perfective
Negative
Polite
Formal Register
Mathematics