-7
(-3)-(4)=(-3)+4=1 Minus times minus equals plus. The reason for this we need not discuss.
Zero
If a equals 3 and b equals minus 5 then a minus b equals what
3 divided by 4 plus 1 divided by 2 minus 2 divided by 3
7 minus 1 times 0 plus 3 divided by 3 equals 8.
x=0
2x+3-7=0 2x=4 x=2
7
-7
X=-3
1/2 = 25/50
18
(x, y) = (-3, -3) or (3, 3)
27 times 3 minus 46 plus 23 equals 58.
y equals 3
Minus 1 times 0 plus 3 divided by 3 is equal to 1