Question

96-(5×5+a×6-40)×2=9×10÷2​

Answer 1

Răspuns:  $\red{\bf a = \dfrac{27}{4} }$

Explicație pas cu pas:

$\bf 96-\Big(5\cdot5+a \cdot 6-40\Big)\cdot 2=9\cdot 10:2$

$\bf 96-\Big(25+6a-40\Big)\cdot 2=90:2$

$\bf 96-\Big(25+6a-40\Big)\cdot 2=45$

$\bf 96-\Big(6a-15\Big)\cdot 2=45$

$\bf 96-12a+30=45$

$\bf 126-12a=45$

$\bf 126=45+12a$

$\bf 126-45=12a$

$\bf 81=12a$

$\bf a = \dfrac{81^{(3}~}{12}$

$\red{\boxed{\bf a = \dfrac{27}{4} }}$

==pav38==

Baftă multă !