Răspunsuri

2014-11-10T19:46:18+02:00
A) 2x + 6 = 42 => 2x= 36 <=> x = 18
c) 8x + 24= 64 <=> 8x= 40 <=> x=5
e)18x+24= 186  <=> 18x= 162 <=> x=9
g)20x- 48= 152 <=> 20x= 200 <=> x= 10

9 4 9