5
1 + 3 = 4
4
3 * 3 + 1 = 10
6-7+(-3) = -1 +(-3) = -1 -3 = -4
1/5
4 x 3 + 1 = 13
It is an equation and the value of x is 1
If you mean: 7+2b = 1 then the value of b is -3
5+3^2-1 = 13 (5+3)^2-1=63
you could try "what will 1 1 212 1 2 3 4 n one =?" and add it up like this.:):):):):):):) or i don't know... 1 1 1 2 3 4 +212=224
x= -1
1 over 3 plus 1 over 12 equals 5 over 12