Answer:
x = 15 , y = 7
Explanation:
2(5x - 5) and (3x - 5) are a linear pair and sum to 180° , that is
2(5x - 5) + (3x - 5) = 180 ← distribute the parenthesis on the left side
10x - 10 + 3x - 5 = 180
13x - 15 = 180 ( add 15 to both sides )
13x = 195 ( divide both sides by 13 )
x = 15
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3x - 5 = 3(15) - 5 = 45 - 5 = 40
3x - 5 and 5y + 5 are vertically opposite angles and are congruent, so
5y + 5 = 40 ( subtract 5 from both sides )
5y = 35 ( divide both sides by 5 )
y = 7