Question

va rog sa ma ajutați cu ex din poza​

Answer 1

Uite. Succes in continuare

Answer 2

Răspuns:

d) x = 6,5

g) x = -9

Explicație pas cu pas:

d)

$\frac{7x-5}{3}-\frac{4x+1}{2} = 0\\\\ (7x-5)*2 - (4x+1)*3 = 0\\\\ 14x-10-12x-3 = 0\\\\2x-13 = 0\\\\2x = 13\\\\x = \frac{13}{2} = 6,5$

g)

$\frac{x}{5}-\frac{3-x}{10}=\frac{x+3}{2}\\\\ x*2 - (3-x) = (x+3)*5\\\\ 2x-3+x = 5x+15\\\\ -3-15 = 5x-2x-x\\\\-18 = 2x\\\\x = \frac{-18}{2}\\\\ x = -9$