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Solve the system of equations.𝑦=5−2𝑥4𝑥+3𝑦=−13Group of answer choices(14,23)(−14,23)(14,−23)(−14,−23)

Question

Solve the system of equations.

y=52x y = 5 - 2x

4x+3y=13 4x + 3y = -13

Group of answer choices:

  • (14, 23)
  • (−14, 23)
  • (14, −23)
  • (−14, −23)
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Solution

1. Break Down the Problem

We have the following system of equations:

  1. y=52x y = 5 - 2x
  2. 4x+3y=13 4x + 3y = -13

We'll substitute the expression for y y from the first equation into the second equation to solve for x x .

2. Relevant Concepts

We will use substitution to eliminate y y from the second equation.

3. Analysis and Detail

  1. Substitute y y from the first equation into the second equation: 4x+3(52x)=13 4x + 3(5 - 2x) = -13

  2. Simplify the equation: 4x+156x=13 4x + 15 - 6x = -13 2x+15=13 -2x + 15 = -13

  3. Isolate x x : 2x=1315 -2x = -13 - 15 2x=28 -2x = -28 x=14 x = 14

  4. Now substitute x=14 x = 14 back into the first equation to find y y : y=52(14) y = 5 - 2(14) y=528 y = 5 - 28 y=23 y = -23

4. Verify and Summarize

We have found x=14 x = 14 and y=23 y = -23 . Let's verify by substituting both values back into the second equation: 4(14)+3(23)=13 4(14) + 3(-23) = -13 5669=1313=13 (True) 56 - 69 = -13 \rightarrow -13 = -13 \text{ (True)} Both equations are satisfied.

Final Answer

The solution of the system of equations is (14,23) (14, -23) .

This problem has been solved

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