Identify the pair of linear equations that have the same solution set.(1 point)

Responses

2(3g+5)−2g=2(4−g)
and −36h6=2
2 left parenthesis 3 g plus 5 right parenthesis minus 2 g equals 2 left parenthesis 4 minus g right parenthesis and Start Fraction negative 36 h over 6 End Fraction equals 2

4=k2+5
and 4j−143+5=3
4 equals Start Fraction k over 2 End Fraction plus 5 and Start Fraction 4 j minus 14 over 3 End Fraction plus 5 equals 3

3(m+1)=10
and 6n+3=6−n
3 left parenthesis m plus 1 right parenthesis equals 10 and 6 n plus 3 equals 6 minus n

4k−5=2k
and 8j−2=3j

1 answer

To determine which pair of linear equations has the same solution set, we need to simplify each set of equations and see if they ultimately represent the same line or equality.

  1. First Pair:

    • Equation 1: \( 2(3g + 5) - 2g = 2(4 - g) \)

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

    • Equation 2: \( -36h/6 = 2 \)

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

    They have the same solution.

  2. Second Pair:

    • Equation 1: \( 4 = \frac{k}{2} + 5 \)

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

    • Equation 2: \( \frac{4j - 14}{3} + 5 = 3 \)

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

    They do not have the same solution.

  3. Third Pair:

    • Equation 1: \( 3(m + 1) = 10 \)

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

    • Equation 2: \( 6n + 3 = 6 - n \)

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

    They do not have the same solution.

  4. Fourth Pair:

    • Equation 1: \( 4k - 5 = 2k \)

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

    • Equation 2: \( 8j - 2 = 3j \)

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

    They do not have the same solution.

Based on this analysis, the correct option that consists of equations with the same solution set is the First Pair:

  • \( 2(3g + 5) - 2g = 2(4 - g) \) and \( -\frac{36h}{6} = 2 \).