1)( 63 - 5x ) : а = 6 при а = 3;
2)b : (38x - 95) = 7 при b = 133;
3)15 * ( с - 8x ) = 75 при с = 53;
4)( 6x - d ) * 8 = 104 при d = 29.

1. (63-5x)/3=663-5x=6*363-5x=1863-18=5x45=5xx=45/5x=92. 133/(38x-95)=7 133/7=38x-9519=38x-9519+95=38x114=38xx=114/38x=33. 15*(53-8x)=7553-8x=75/1553-8x=553-5=8x48=8xx=48/8x=64. (6x-29)*8=1046x-29=104/86x-29=136x=13+296x=42x=42/6x=7