Answer:
SQ = 17.5
Explanation:
note that
SK = 7 + 2 = 9
SJ = SQ + 5
Given
=
( substitute values )
=
( cross- multiply )
9 SQ = 7(SQ + 5) ← distribute parenthesis by 7
9 SQ = 7 SQ + 35 ( subtract 7 SQ from both sides )
2 SQ = 35 ( divide both sides by 2 )
SQ = 17.5