Question

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Answer 1

Answer:

$\\ 7x - 3 = \frac{5}{2} \\ 5 = 2(7x - 3) \\ 5 = 1x - 6 \\ 14x = 6 + 5 \\ 14x = 11 \\ x = \frac{11}{14} \\ x = 7.8.$

Answer 2

B is the midpoint

$\\ \sf\longmapsto AB=\dfrac{1}{2}AC$

$\\ \sf\longmapsto 7x-3=\dfrac{5}{2}$

$\\ \sf\longmapsto 5=2(7x-3)$

$\\ \sf\longmapsto 5=14x-6$

$\\ \sf\longmapsto 14x=6+5$

$\\ \sf\longmapsto 14x=11$

$\\ \sf\longmapsto x=\dfrac{11}{14}$

$\\ \sf\longmapsto x=7.8$