Answer:
X must be negative
because the answer is x=-8
Step-by-step explanation:
10 times a number y
3 subtracted from a number x
12 times a number n
hope this helped :)
Answer:
3^4
Step-by-step explanation:
The exponent signifies the number of times the factor is repeated. Here, the factor 3 is repeated 4 times, so its exponent is 4:
3·3·3·3 = 3^4
If you have appropriate symbols available, you can also write it using a superscript: 3^4 = 3⁴.
<u><em /></u>Subtracting a negative number really means to add it
Here's addition:
(1) + (1) = 2
(1) + (-1) = 0
(-1) + (-1) = -2
(-1) + (1) = 0
Here's subtraction:
(1) - (1) = (1) + (-1) =0
(1) - (-1) = (1) + (1) = 2
(-1) - (-1) = (-1) + (1) = 0
(-1) - (1) = (-1) + (-1) = -2
Here's your problem specifically:
(5/10) - (-8/10)
(5/10) + (8/10)
*since they have the same denominator, that stays the same, and you only have to add up numerators
(5 + 8)/10
13/10
<u><em>answer is 13/10 . . . it's positive</em></u>
