Answer:
x = 2
BD and CA = 7
Explanation:
3x + 1 = 5x - 3
1 + 3 = 5x - 3x
4 = 2x
x = 4/2
3(2)+1 = 7
The diagonals of a rectangle are congruent , that is
CA = BD , substitute values
5x - 3 = 3x + 1 ( subtract 3x from both sides )
2x - 3 = 1 ( add 3 to both sides )
2x = 4 ( divide both sides by 2 )
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