Question

Afla termenul necunoscut :
a. 17x39 + x = 1000
x+18x29=815

b. 124x19-x = 1000
x-86x47=384

c. 97x12-x=832
x-45x36=159

Answer 1

a.
17x39+x=1000
663+x=1000
x=1000-663
x=337

x+18x29=815
x+522=815
x=815-522
x=293

b.
124x19-x=1000
2356-x=1000
x=2356-1000
x=1356

x-86x47=384
x-4020=384
x=4020+384
x=4404

c.
97x12-x=832
1164-x=832
x=1164-832
x=332

x-45x36=159
x-1620=159
x=1620+159
x=1779

          Sper ca te-am ajutat
   

Answer 2

a)
663+x=1000
x=1000-663
x=337

x+522=815
x=815-522
x=293

b)2356-x=1000
x=2356-1000
x=1356

x-4042=384
x=384+4042
x=4426

c)1164-x=832
x=1164-832
x=332

x-1620=159
x=1620+159
x=1779