| Answer | Crossword Clue |
|---|---|
| MASS | Word in an Einstein equation |
| MASS | Part of an Einstein equation |
| MASS | Word in Einstein's equation |
| MASS | Word in Einstein's equation. |
| VALUE | "x" in an equation |
| VAR | X, in an equation: Abbr. |
| VARIABLE | X or Y, in an equation |
| OPERAND | Part of an equation, in math |
