3. [tex]y + 3x = - 2 \\ 2y - 3x = 14[/tex] To find y, it's easiest to use the elimination method since 3x can already be canceled by adding. [tex]3y =12[/tex] Divide by 3 [tex]y = 4[/tex]
4. [tex] - 3x + 5y = 10 \\ 3x + 7y = 14[/tex] Elimination is easiest to find y, the x is canceled out by adding every number.
