Question

23х-2²*5=7² помогите пж

Answer 1

$23x - {2}^{2} \times 5 = {7}^{2} \\ 23x - 4 \times 5 = 49 \\ 23x - 20 = 49 \\ 23x = 49 + 20 \\ 23x = 69 \\ x = 3$