Answer: Your answer is 627
Step-by-step explanation: If you add 220 to 627, it becomes 847. You can find out by taking away 220 from 847 because the answer would be the same anyways.
And whats the rest of the question
1) 180° - 146° = 34
9х - 2 = 34
9х = 34 + 2
9х = 36
х = 36 : 9
х = 4
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2) (9х - 2) + (6у + 44) = 180°
(9 * 4 - 2) + (6у + 44) = 180
(36 - 2) + (6у + 44) = 180
34 + 6у + 44 = 180
6у = 180 - 34 - 44
6у = 102
у = 102 : 6
у = 17
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Answer:
[-16 20 -24].
Step-by-step explanation:
4[-4 5 -6]
= [4*-4 4*5 5*-6]
= [-16 20 -24].
