Question

под буквой г пожааалууйста

Answer 1

$\frac{x-3}{2,7}= \frac{4}{5,4} \\ (x-3)*5.4=4*2.7 \\ 5.4x-16.2=10.8 \\ 5.4x=10.8+16.2 \\ 5.4x=27 \\ x=27/5.4 \\ x=5$

Answer 2

(x-3)×5.4=2.7×4
x-3=2.7×4÷5.4
x-3=2
x=2+3
x=5