Răspuns :
[ 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
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
[ 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
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