Question

Rezolvați ecuațiile:
$g)5(x - 7) - 3(x - 3) + 17 = 11$
$h)3(x + 5) - 2 = 2( x - 1) - 5$
$i) - 3(x + 1) - 2(1 - 2 x) - (x + 5) = 17 - x$
​

Answer 1

Răspuns:

g)5X-35-3X+9+17=11

5X-3X=35-9-17+11

2X=18

X=18÷2

X=9

h)3X+15-2=2X-2-5

3X-2X=-15+2-2-5

X=10

i) -3X-1-2+2X-X-5=17-X

-3X+2X-X+X=1+2+5+17

-X=25

X=25