7 Cool Science Games You Need to Play—Scientists Will Hate the Fun!

**7 Cool Science Games You Need to Play—Scientists Will

**7 Cool Science Games You Need to Play—Scientists Will
\[ 6p + q = 7 \quad \text{(E4)} \]
Subtract E2 from E3:
\[ (37p + 7q + r) - (19p + 5q + r) = 45 - 25 \]
\[ 18p + 2q = 20 \]
\[ 9p + q = 10 \quad \text{(E5)} \]
Subtract E4 from E5:
\[ (9p + q) - (6p + q) = 10 - 7 \]
\[ 3p = 3 \Rightarrow p = 1 \]
Substitute \( p = 1 \) into E4:
\[ 6(1) + q = 7 \Rightarrow q = 1 \]