Question

7x - 3y = 4
2x - 4y = 1

The solution to the system of equations is _____.

(13/34, -15/34)
(3/22, -7/22)
(13/22, 1/22)

Answer 1

\[\huge{7x-3y=4}\]
\[\huge{2x-4y=1}\]

1) \[\huge{x=\frac{4+3y}{7}}\]
2) \[\huge{2(\frac{{4+3y}}{7})-4y=1}\]
\[\huge{\frac{8+6y-28y}{7}=1}\]
\[\huge{\frac{8-22y}{7}=1}\]
\[\huge{8-22y=7}\]
\[\huge{y=\frac{1}{22}}\]

Answer 2

so \[x =4+3\left( 1/22 \right) \over7\]

Answer 3

= 13/22