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Q: Is 10 plus 20 equal to 30?

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-30

30 or -10 if the 20 is negative.

286

50 + 40 + 40 + 40 + 30 + 30 + 20 + 10 = 260

30

10 + 20 = 30

18 + 10 + 20 + 30 + 15 + 50= 143

20 + 10 - 31 + 30 - 5 = 24

10 plus 20 plus 30plus 40 plus 50 equals 150 because 50 plus 40 equals 90 plus 30 =120+20= 140 then + 10 = 150

30

30

40+-30=10

20 * 10?

10

How about: 4+10+16 = 30 as one example out of many many more possibilities

5x + 20 = 4x +30 5x - 4x = 30 - 20 x = 10

10.30 + 30 minutes = 11 (eleven o'clock).

No, 10% + 20% = 0.3 or 30%

-8x - 10 - 20 = -8x - 30

9/10 + 2/3 = 27/30 + 20/30 = 47/30 or 1 and 17/30

I am having difficulty understanding your question. 12 + 20 = 10 is obviously false (12 + 20 = 32).If 4x + 14 = 2x + 30, then x must equal 8.

They are: 20 to 14 and 30 to 21

30 mg

positive 10

11:15