20 + 10 - 31 + 30 - 5 = 24
1 + 30 + 2 + 3 + 5 + 6 + 10 + 15 = 72
If you mean: 10+4r = 30 then it works out that r = 5
10 + 4 x 5 = 30 (10 + 4) x 5 = 70
1/3 + 3/5 + 7/10 = 49/30 or 119/30
8+1+5+5+3+8+10+30=70 The answer is 70
20 + 10 - 31 + 30 - 5 = 24
10 - 5 + 14324 + 12 + 30 - 1000 = 13371
The answer would be 20 (-6)x(-5)+(-10) -6x-5= 30 30+(-10) 30-10 20 !
1 + 30 + 2 + 3 + 5 + 6 + 10 + 15 = 72
1/10 + 5/6 + 2/3 = 3/30 + 25/30 + 20/30 = 48/30 = 16/10 or 13/5
(2/5) + (1/6) + (1/3) + (5/6) + (7/10) =(12/30) + (5/30) + (10/30) + (25/30) + (21/30) = 73/30 = 2 and 13/30
If you mean: 10+4r = 30 then it works out that r = 5
7/10 + 3/5 + 2/3 = 21/30 + 18/30 + 20/30 = 59/30 = 129/30
10 + 10 + 10
10 + 4 x 5 = 30 (10 + 4) x 5 = 70
5x+10=40 5x+10-10=40-10 5x=30 5x/5=30/5 x=6