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Solve the system of equations.2𝑥+3𝑦=8−2𝑦=−4Group of answer choices(1,2)(−1,−2)(−1,2)(1,−2)

Question

Solve the system of equations.

  1. 2x+3y=8 2x + 3y = 8
  2. 2y=4 -2y = -4

Group of answer choices:

  • (1,2)
  • (−1,−2)
  • (−1,2)
  • (1,−2)
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Solution

1. Break Down the Problem

We have a system of equations:

  1. 2x+3y=8 2x + 3y = 8
  2. 2y=4 -2y = -4

We need to solve these equations for x x and y y .

2. Relevant Concepts

To solve a system of equations, we can use substitution or elimination. In this case, the second equation can be manipulated to find y y .

3. Analysis and Detail

Step 1: Solve the second equation for y y . 2y=4 -2y = -4 Dividing both sides by -2: y=2 y = 2

Step 2: Substitute y=2 y = 2 into the first equation 2x+3y=8 2x + 3y = 8 : 2x+3(2)=8 2x + 3(2) = 8 2x+6=8 2x + 6 = 8 Subtracting 6 from both sides: 2x=2 2x = 2 Dividing both sides by 2: x=1 x = 1

4. Verify and Summarize

We found:

  • x=1 x = 1
  • y=2 y = 2

Let's check if these values satisfy both original equations.

  1. For the first equation: 2(1)+3(2)=2+6=8(True) 2(1) + 3(2) = 2 + 6 = 8 \quad \text{(True)}
  2. For the second equation: 2(2)=4(True) -2(2) = -4 \quad \text{(True)}

Final Answer

The solution to the system of equations is (1,2) (1, 2) .

This problem has been solved

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