Since adding a negative is the same as subtracting a positive,
4+(-6)
4-6
-2
x=8
3 + 542 = 545 - 6 = 539.
3x+4=10 To solve: 3x+4=10 3x=6 x=2
-7x + 6 + 7x - 2 = 4
-22
minus 5
2 + 4 + 6 + 20 = 32
Σxievaluated for [ 0 < i < 11 ]. (That's just a neater way to write the problem. It doesn't help you solve it ...you still have to know how to add.)
2/3 +4/6 =
6+4
x = 6
h= -4