Last updated on Sep 20, 2026

Practice Problems (Junior Cert Mathematics): Flashcards

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Solve for $x$ : $2x - 3y = 14$ , $2x - y = 10$

$x = 4$

Solve for $y$ : $2x - 3y = 14$ , $2x - y = 10$

$y = -2$

Solution: $2x - 3y = 14$ , $2x - y = 10$

$x = 4$ , $y = -2$

Solve for $x$ : $3x + y = 5$ , $5x - 4y = -3$

$x = 1$

Solve for $y$ : $3x + y = 5$ , $5x - 4y = -3$

$y = 2$

Solution: $3x + y = 5$ , $5x - 4y = -3$

$x = 1$ , $y = 2$

Solve for $x$ : $2x - y = 12$ , $3x + 2y = 11$

$x = 5$

Solve for $y$ : $2x - y = 12$ , $3x + 2y = 11$

$y = -2$

Solution: $2x - y = 12$ , $3x + 2y = 11$

$x = 5$ , $y = -2$

Eliminate $y$ : $2x - 3y = 14$ , $2x - y = 10$

$-4x = -16$

Eliminate $y$ : $3x + y = 5$ , $5x - 4y = -3$

$17x = 17$

Eliminate $y$ : $2x - y = 12$ , $3x + 2y = 11$

$7x = 35$

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