Question

Rezolvați ecuațiile a)2x=10+x; b)2x+1=10 c)5×[2×(3x+2)-11]+2=27​

Answer 1

$a)2x=10+x$

$2x - x = 10$

$x =1 0$

$b)2x+1=10$

$2x = 10 - 1$

$2x = 9$

$x = \frac{9}{2}$

$c)5×[2×(3x+2)-11]+2=27$

$5 \times (6x + 4 - 11) + 2 = 27$

$5 \times (6x - 7) + 2 = 27$

$30x - 35 + 2 = 27$

$30x - 33 = 27$

$30x = 27 + 33$

$30x = 60$

$x = 2$