Question

te rog frumos ajutați

Answer 1

4.

$324 \div (2x - 5) = 36$

$324 = 36 \div (2x - 5)$

$9 = 2x - 5$

$- 2x = - 5 - 9$

$- 2x = - 14$

$x = 7$

5.

$z = 2l$

$v = 5l$

$z + v + l = 80$

$8l = 80$

$l = 10$

$z = 2l$

$z = 20$

$v = 5l$

$v = 50$