Question

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a x 4 x 8 = 64 a:3:4 = 5 (a + 365):2 = 1 000 (a - 29): 4 = 160 (a + 3 x 2) x 5 = 50 (70 - ax 7): 7 = 7 a - 21.-76 = 101 a +43 + 209 = 300 139 va rog urgent ​

Answer 1

1. a * 4 * 8 = 64 => a = 64 / ( 4 * 8) = 64 / 32 => a = 2

2. a : 3 : 4 = 5 => a = 5 * 3 * 4 => a = 60

3. (a + 365) : 2 = 1000 <=> a + 365 = 2000 => a = 2000 - 365 => a = 1635

4. (a - 29) : 4 = 160 <=> a - 29 = 640 => a = 640 + 29 => a = 669

5.  (a + 3 x 2) x 5 = 50 <=> a + 6 = 10 => a = 10 - 6 => a = 4

6. (70 - ax7) : 7 = 7 <=> 70 - ax7 = 49 <=> -ax7 = 49 - 70 <=> ax7 = 21 => ax = 21 / 7 => ax = 3

7. a - 21 - 76 = 101 => a = 101 + 21 + 76 => a = 198

8.  a + 43 + 209 = 300139 => a = 300139 - 43 - 209 => a = 299887