Question

Ecuatia (z:9)x15-47=28 ajutatima!

Answer 1

$(z \div 9) \times 15 - 47 = 28 \\ \\ (z \div 9) \times 15 = 47 + 28 \\ \\ z \div 9 = 75 \div 15 \\ \\ z \div 9 = 5 \\ \\ z = 9 \times 5 \\ \\ z = 45$