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olya-2409 [2.1K]
3 years ago
11

Solve the system of equation by the addition method x-6y=19 and -x+2y =-31

SAT
1 answer:
Tomtit [17]3 years ago
7 0
X-6y=19
-x+2y=-31
________
0-4y= -12
-4y=-12
y= -12/-4
y=3
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Note that, whenever we are dealing with simple interest, the amount of money in the bank after a certain number of years is just P(1 + PRT), where P is the principal amount, R is the interest rate, and T is the number of years the money is in the bank.

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