Question

Daca a-5b=7, aflati x don relatia:
X-2a+10b+17=4

Answer 1

x-2a+10b+17=4

  x-2(a+5b)+17=4  

  x-2*7+17=4

  x-14+17=4  

  x+3=4  

  x=4-3

  x=1

           Coaroana te rog