7 + 5 + 4 ÷ 2 + 7 = 21
It is 5*7*4 = 140
9 + 8 + 7 + 6 + 5 + 4 = 39
3 plus 4 is 7, not 5.
9 + 8 + 7 + 6 + 5 + 4 + 3 = 42
6
-6 (minus six).
7 + 5 + 4 + 5 + 3 + 4 + 6 + 5 + 4 + 5 + 6 + 4 + 7 = 65
(4 x 7) + 5 = 33
If: -5 = 7+3r then the value of r works out as -4
41
-4 + 5 + (-7) = -6
The value of M from the equation 47n plus 57 would be 7. This is basic math.
-5+7--4+12 = 18
79
-7
The problem of -5 plus 7 - (-4 plus -12) is equal to 18.