Question

Two angles measure (93⁰-4a) and (21⁰+7a). If each is supplement of the other, then the value of ‘a’.

Answer 1

Answer:

Step-by-step explanation:

(93 - 4a) and (21 + 7a) are supplements of each other.

That means,

(93 - 4a) + (21 + 7a) = 180

93 - 4a + 21 + 7a = 180

- 4a + 7a = 180 - 93 - 21

3a = 180 - 114

3a = 66

a = 66 / 3

a = 22

Therefore, the value of 'a' = 22

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