Which of the following shows a system of equations equivalent to 2x+7y=14

and 4x+5y=10
?

1 answer

To determine a system of equations equivalent to

  1. \( 2x + 7y = 14 \)
  2. \( 4x + 5y = 10 \),

we can manipulate these equations using various methods such as multiplication or addition/subtraction.

Step 1: Rewrite the equations

We can multiply the first equation by 2 to get:

\[ 2(2x + 7y) = 2(14) \ 4x + 14y = 28 \]

Now we have:

  1. \( 4x + 14y = 28 \)
  2. \( 4x + 5y = 10 \)

Step 2: Create a new system of equations

The new system of equations now looks like:

  1. \( 4x + 14y = 28 \)
  2. \( 4x + 5y = 10 \)

Step 3: Check for a proportional relationship

To check whether the second equation can be manipulated to maintain equivalence with the original equations, we can explore scaling and adding/subtracting equations.

However, without specific multiple-choice options, it's essential to maintain the same set of equations while forming an equivalent system, so the valid equivalent equations could differ.

Conclusion

To summarize, the transformed equations:

\[ 4x + 14y = 28 \] \[ 4x + 5y = 10 \]

are equivalent to the original equations, but if you need specific options, please provide them for clarity.