85
N = 28 (you have to subtract 70 from both sides of the equation)
70
70 = 81-n subtract 70 from both sides 0 = 11 - n subtract 11 from both sides -11 = -n divide both sides by -1 11 = n
Stop being lazy and subtract 70 from 2012
28
Well, split 70 in half: 35 + 35. Add 4 (half of the 8) to one half: 39. Subtract 4 (the other half of 8) from the other half: 31. The smaller number is 31.
130
85
23 is the half of 70
N = 28 (you have to subtract 70 from both sides of the equation)
The half of 140 is 70
70 :)
70
70 - (20 - 13)
70 = 81-n subtract 70 from both sides 0 = 11 - n subtract 11 from both sides -11 = -n divide both sides by -1 11 = n
Stop being lazy and subtract 70 from 2012