Question

3*(x+6)-23=16 помогите 4 класс

Answer 1

$3 \times (x + 6) - 23 = 16 \\ 3 \times (x + 6) = 39 \\ x + 6 = 39 \div 3 \\ x + 6 = 13 \\ x = 13 - 6 \\ x = 7 \\ 3 \times (7 + 6) - 23 = 16 \\16 = 16$