Question

4 Află numerele necunoscute.
a) 80 + 6 x 79 + 123 x 18-a = 5 000
b) 76 x 6 + b = 125 x 3 + 25 8​

Answer 1

80 + 6 x 79 + 123 x 18 - a = 5000
80 + 474 + 2214 - a = 5000
2768 - a = 5000
a = 5000 - 2768
a = 2232

76 x 6 + b = 125 x 3 + 258
456 + b = 375 + 258
456 + b = 633
b = 633 - 456
b = 177