👤

Aflati valoarea lui x din fiecare egalitate
x x4+244=1000
x x7-198=670
445+5x x=990
584-9x x=476


Răspuns :

x *4+244=1000 |-244
4x= 756 |
÷4
x= 189

x *7-198=670 |+198
7x=868 |
÷7
x=124

445+5*x=990 | -445
5x= 545 |
÷5
x= 109

584-9* x=476
9x=584 - 476
9x= 108 |
÷9
x=12

4X+244=1000 rez ca 4X= 1000-244 rez ca X=756: 4 rez ca X= 189. 7X-198= 670. rez ca 7X= 670+198 rez ca 7X= 868 rez ca X= 868:7= 124. 445+5X=990 rez ca 5X= 990-445 rez ca X = 545 : 5 rez ca X = 109. 584-9X=476 rez ca 9X= 584-476 rez ca X= 108 : 9 rez ca X= 12