100:x=20
x=100:20
x=5
Ответ:x=5
G(3x)=6x-1
g(x-4)=2x-8-1=2x-9
4(g(3x)-3g(x-4))=4(6x-1-3(2x-9))=4(6x-1-6x+27)=4*26=104
S=π*R²=π*(d/2)²
а) 6*6*22/7=792/7=113 1/7
б) 7*7*22.7=22*7=154
ABM=50 ZFG=65 EOP=115 LKN=55 NZF=90 KXT=125 BEC=140 ABC=90 XSD=50 HOS=180 RDF=120 MPC=140