а) \( (x + 193) : 10 = 20 \)
\( x + 193 = 20 \cdot 10 \)
\( x + 193 = 200 \)
\( x = 200 - 193 = 7 \)
б) \( 125 \cdot x = 1000 \)
\( x = 1000 : 125 \)
\( x = 8 \)
в) \( (2^2 + 1) \cdot x = 150 \)
\( (4 + 1) \cdot x = 150 \)
\( 5 \cdot x = 150 \)
\( x = 150 : 5 \)
\( x = 30 \)
г) \( 47 - (15 - x) = 36 \)
\( 15 - x = 47 - 36 \)
\( 15 - x = 11 \)
\( x = 15 - 11 \)
\( x = 4 \)
д) \( x + 36 : 6 = 206 \)
\( x + 6 = 206 \)
\( x = 206 - 6 \)
\( x = 200 \)
ж) \( x + 12 : 3 = 44 \)
\( x + 4 = 44 \)
\( x = 44 - 4 \)
\( x = 40 \)
Ответ: а) 7; б) 8; в) 30; г) 4; д) 200; ж) 40.