Answer:
D. (2 , 1)
Step-by-step explanation:
STEP 1: Replace all occurrences of [tex]y[/tex] with [tex]-3x+7[/tex] in each equation.
[tex]-x+14=12\\y=-3x+7[/tex]
STEP 2: Solve for [tex]x[/tex] in the first equation.
[tex]x=2\\y=-3x+7[/tex]
STEP 3: Replace all occurrences of [tex]x[/tex] with [tex]2[/tex] in each equation.
[tex]y=1\\x=2[/tex]