Question

Aflati numarul x din propozitia 2x-4/40=4/5

Answer 1

$\frac{2x - 4}{40} = \frac{4}{5} \\ \\ 2x - 4 = \frac{40 \times 4}{5} \\ \\ 2x - 4 = \frac{160}{5} \\ \\ 2x - 4 = 32 \\ \\ 2x = 32 + 4 \\ \\ 2x = 36 \\ \\ x = 36 \div 2 \\ \\ x = 18$