Question

Выразите y через x.

1) 4x+2y=1
2)-1/3x+1/8y=1/8

Answer 1

1) y=(1-4x)/2

2)y=8(1/8+1/3x)

Answer 2

$4x+2y=1\\\\2y=1-4x\\\\y=\frac{1-4x}{2}=0,5-2x\\\\2)-\frac{1}{3}x+\frac{1}{8}y=\frac{1}{8}\\\\\frac{1}{8}y=\frac{1}{3}x+\frac{1}{8}\\\\y=\frac{8}{3}x+1=2\frac{2}{3}x+1$