Answer:
Step-by-step explanation:
1.40n would be the total price paid for n packages of pencils, and 1.20 that paid for m pads of paper.
The expression 1.4n + 1.2m represents the total paid for all of the pencils ad pads of paper.
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x= -3
y= -2
From the first one, if you add 2y to both sides you can plug that into the second one and solve for y. Then, plug y to the first one and solve for x.
-7