Sin(arcsin(4x+1))=3x²
4x+1=3x²
3x²-4x-1=0
D=(-4)²-4*3*(-1)=16+12=28
x1=(4+√28)/6=(4+2√7)/6=(2+√7)/3
x2=(2-√7)/3
6 *(36x-12) = 1
216x - 72 =1
216x= 1+72
216x = 73
x = 73 /216
(2268÷42 + 7140÷34)÷2=
(54+210):2=264:2=132
1200=1360-х+500
х=1360+500-1200
х=660
90=5400:х-810
5400:х=90+810
5400:х=900
х=5400:900
х=6
9000=15*х-15000
15*х=9000+15000
15*х=24000
х=24000:15
х=1600