-4x+9y=9; x-3y=-6
Elimination method
1 answer:
Answer:
x=9, y=5. (9, 5).
Step-by-step explanation:
-4x+9y=9
x-3y=-6
-----------------
x=3y+(-6)
x=3y-6
-4(3y-6)+9y=9
-12y+24+9y=9
-3y=9-24
-3y=-15
3y=15
y=15/3
y=5
x-3(5)=-6
x-15=-6
x=-6+15
x=9
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