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