10×3 + 8×4 + 8×5 + 6×6 + 9x = 225 = 4×3 + 6×4 + 6×5 +10×6 + 2×7 + 4×8 +10y
9x = 34 + 10y
y = 2
There are 192 letter cells.
10×3 + 8×4 + 8×5 + 6×6 + 9x = 225 = 4×3 + 6×4 + 6×5 +10×6 + 2×7 + 4×8 +10y
9x = 34 + 10y
y = 2
There are 192 letter cells.