Answer:
18
Step-by-step explanation:
90-80=10
10*2=20
20-2=18
<span> x^2+8x+12 = </span>(x + 6)(x + 2)
Answer:
x = 2.66666667
Step-by-step explanation:
3(x + 1) = 11
We multiply both x and 1 by 3 and get
3x + 3 = 11
Now we subtract 3 from both sides
3x + 3 - 3 = 11 - 3
3x = 8
Now divide both sides by 3
3x/3 = 8/3
x = 2.66666667
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Answer:
x=4
Step-by-step explanation:
Multiply to remove the fraction, then set equal to 0 and solve.
Here is the equation:
Since both decimals are negative, the answer will be positive.
- Negative times Negative = Positive
Divide both sides by -3.9 to leave the variable alone:
r is equal to 4 → r = 4