What is the solution (a, b) to this system of linear equations?3a+6b=452a-2b=-12(-27, 6)(-1, 7)(1, 7)(27, -6)

Answer:a=1, b=7. (1, 7).Step-by-step explanation:3a+6b=452a-2b=-12-----------------simplify 3a+6b=45 into a+2b=15and 2a-2b=-12 into a-b=-6--------------------a+2b=15a-b=-6--------------a+2b=15-(a-b)=-(-6)-----------------a+2b=15-a+b=6---------------3b=21b=21/3b=7a+2(7)=15a+14=15a=15-14a=1