Question

ax5+6-20:4=73 care este rezolvarea?

Answer 1

$\displaystyle a \times 5+6-20:4=73 \\ \\ 5a+6-5=73 \\ \\ 5a=73-6+5 \\ \\ 5a=72 \\ \\ a= \frac{72}{5}$

Answer 2

ax5+6-20:4=73
ax5+6-5=73
ax5+6=73+5
ax5+6=78
ax5=78-6
ax5=72
a=72:5
a=14 rest 2