Respuesta :

Step 1: Add (-1)/9 to both sides.12x+29y+19+−19=1+−1912x+29y=89Step 2: Add (-2)/9y to both sides.12x+29y+−29y=89+−29y12x=−29y+89Step 3: Divide both sides by 1/2.12x12=−29y+8912x=−49y+169Answer:x=−49y+169