Question

Determinati nr X stiind ca [ 3 + ( x - 5 ) * 7 ] : 2 = 19. REPEDEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

[ 3 + ( x - 5 ) · 7 ] : 2 = 19. <=>

[ 3 + ( x - 5 ) · 7 ]  = 19·2 <=>

( x - 5 ) · 7 = 38-3  <=>

x - 5 =  35:7

x - 5 = 5

x = 5+5

x = 10

Answer 2

3+(x-5)*7=19*2  3+(x-5)*7=38  (x-5)*7=38-3   x-5=35/7   x-5=5  x=5+5  x=10