Answer:
x = 11
Explanation:
Given the triangles are similar then the ratios of corresponding sides are equal, that is
=
= 2 ( multiply both sides by x + 7 )
3x + 3 = 2(x + 7)
3x + 3 = 2x + 14 ( subtract 2x from both sides )
x + 3 = 14 ( subtract 3 from both sides )
x = 11