Răspuns :
Răspuns
a = 25 275
Explicație pas cu pas:
(a x 8 + 450 x 250) : 3 147 + [83 x 6 x 8 - (20 000 - 16 216)] = 300
(a x 8 + 450 x 250) : 3 147 + (83 x 6 x 8 - 3784) = 300
(a x 8 + 450 x 250) : 3 147 + (3984 - 3784) = 300
(a x 8 + 450 x 250) : 3 147 + 200 = 300
(a x 8 + 450 x 250) : 3 147 = 300 - 200
(a x 8 + 450 x 250) : 3 147 = 100
a x 8 + 450 x 250 = 100 x 3 147
a x 8 = 100 x 3 147 - 450 x 250
a x 8 = 314 700 - 112 500
a x 8 = 202 200
a = 202 200 : 8
a = 25 275
(ax8+450x250):3147+[83x6x8-(20 000- 16 216)] = 300
(ax8+112 500):3147 + (3984 - 3784) = 300
(ax8+112 500):3147 + 200 = 300
(ax8+112 500):3147 = 300-200
(ax8+112 500):3147 = 100
ax8+112 500 = 100x3147
ax8+112 500 = 314 700
ax8 = 314 700 - 112 500
ax8 = 202 200
a = 202 200:8
a = 25 275