Ответ:
х:5+4=x+6:4
Объяснение:
46+2(х-3)=3х-6
46+2х-6=3х-6
2х-3х=-6-46+6
-х=-46
х=46
log(a) b + log(a) c = log(a) b*c
log(a) b = lod(a) c ⇒ b = c
log(1/3) 8 + log(1/3) x = log(1/3) 4
одз х > 0
log(1/3) 8*x = log(1/3) 4
8x = 4
x = 1/2
3x-7=-19-x
3x-7+19+x=0
4x+12=0
4x=-12
X=-3