Identify the pair of linear equations that have the same solution set.

2(3g+5)−2g=2(4−g) and −36h/6=2

3(m+1)=10 and 6n+3=6−n

4k−5=2k and 8j−2=3j

4=k/2+5 and 4j−14/3+5=3

1 answer

To find the pair of linear equations that have the same solution set, we need to solve each pair of equations and compare their solution sets.

  1. First Pair of Equations:

    • \( 2(3g + 5) - 2g = 2(4 - g) \)

    • Simplifying: \[ 6g + 10 - 2g = 8 - 2g \] \[ 4g + 10 = 8 - 2g \] \[ 4g + 2g = 8 - 10 \] \[ 6g = -2 \] \[ g = -\frac{1}{3} \]

    • \( -\frac{36h}{6} = 2 \)

    • Simplifying: \[ -6h = 2 \] \[ h = -\frac{1}{3} \]

    Both equations have a solution of \( g = -\frac{1}{3} \) and \( h = -\frac{1}{3} \).

  2. Second Pair of Equations:

    • \( 3(m + 1) = 10 \)

    • Simplifying: \[ 3m + 3 = 10 \] \[ 3m = 7 \] \[ m = \frac{7}{3} \]

    • \( 6n + 3 = 6 - n \)

    • Simplifying: \[ 6n + n = 6 - 3 \] \[ 7n = 3 \] \[ n = \frac{3}{7} \]

    These do not have the same solution set.

  3. Third Pair of Equations:

    • \( 4k - 5 = 2k \)

    • Simplifying: \[ 4k - 2k = 5 + 2 \] \[ 2k = 7 \] \[ k = \frac{7}{2} \]

    • \( 8j - 2 = 3j \)

    • Simplifying: \[ 8j - 3j = 2 \] \[ 5j = 2 \] \[ j = \frac{2}{5} \]

    These do not have the same solution set.

  4. Fourth Pair of Equations:

    • \( 4 = \frac{k}{2} + 5 \)

    • Simplifying: \[ \frac{k}{2} = 4 - 5 \] \[ \frac{k}{2} = -1 \] \[ k = -2 \]

    • \( \frac{4j - 14}{3} + 5 = 3 \)

    • Simplifying: \[ \frac{4j - 14}{3} = 3 - 5 \] \[ \frac{4j - 14}{3} = -2 \] Multiply by 3: \[ 4j - 14 = -6 \] \[ 4j = 8 \] \[ j = 2 \]

    These do not have the same solution set.

Conclusion

Upon checking all pairs, the first pair of equations \( 2(3g+5)-2g=2(4-g) \) and \( -\frac{36h}{6}=2 \) both yield \( g = -\frac{1}{3} \) and \( h = -\frac{1}{3} \).

Thus, the pair of linear equations that have the same solution set is:

Answer: First Pair: \( 2(3g+5)-2g=2(4-g) \) and \( -\frac{36h}{6}=2 \).