2 * 70 - 9 / 3 + 8
= 140 - 3 + 8
= 140 - 11
= 129
It is 5.
Yes: the equation is tautological!
8
1
+ times a + = a plus- times a + = a minus- times a - = a plus+ times a - = a minus
PEMDAS says to divide first then addSo64/4=1616+7=23
* is times / is divide + is plus - is minus
plus times plus = plus minus times plus = minus plus times minus = minus minus times minus = plus so when you subtract a number it is the same as adding its negative; for example 7 - 4 = 3 7 + (1)(-4) = 3
A plus times a plus is still a plus. Below is the way I remembered it: If there is not a minus sign, it is plus (positive). If there is 1 minus sign, it is minus (negative). If there are 2 minus signs, it is plus (positive).
Positive (Plus) times Negative (Minus) always equals a negative (minus).
8060 Source: calculator
56 + 100 - 24 = 132