Question

If the angles (4y+4)° and (6y-4)°are complementary angles,find y.

Answer 1

The sum of the complementary angles are 180 so add up both of them
4y+4+6y-4=180
10y=180
Y=18
Hope it helps........

Answer 2

add them

first remove the brackets

(the sum of complementary angle is 180)

then do grouping

the answer will come, 4y+6y+4-4=180

cancel +4 and -4

the number left is 10y=180

y=180/10

so the answer is 18

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