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the sum of two numbers, x and y, is 142. their difference is 14. which system of equations could be used to find the numbers?

User Brade
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2 Answers

7 votes

Answer: Addition, 128

Step-by-step explanation: with any question like this you are to do the opposite of what is tells you to do like when it said the sum your supposed to subtract the two numbers.

User Hari Seldon
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3 votes

Final Answer:

The system of equations for the scenario is: x + y = 142, x - y = 14

Solving this system gives you: x = 78, y = 64

Therefore, the larger number is 78 and the smaller number is 64.

Step-by-step explanation:

Define the variables: Let x be the larger number and y be the smaller number.

Translate the information into equations:

The sum of x and y is 142, so write x + y = 142.

The difference between x and y is 14, so write x - y = 14.

Solve the system: You can solve this system using various methods like elimination or substitution. Here, we'll use elimination:

Add the two equations together:

2x = 156

Divide both sides by 2:

x = 78

Substitute this value for x in either of the original equations to find y:

78 - y = 14;

y = 64.

Therefore, the system of equations successfully represents the given scenario and allows you to find the individual values of x and y.

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Complete Question

The sum of two numbers, x and y, is 142. Their difference is 14. Write a system of equations for the scenario and solve.

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User Rmw
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5.3k points