Step 1: Subtract 2x from both sides.
x−2x=2x−4−2x
−x=−4
Step 2: Divide both sides by -1.
−x−1=−4−1
x=4
Answer:
x=4
Answer: (a) x = -1
Step-by-step explanation:
<u>Given</u>
x - 8 = - 9
<u>Add 8 on both sides to isolate x</u>
x - 8 + 8 = - 9 + 8

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Answer:20
Step-by-step explanation:
4(3)2-2(2)
12(2)-4
24-4=20
Answer:
6400 AED
9.14%
yes. The interest rate is 9.14%. This is less than 10%
Step-by-step explanation:
Interest amount she would pay = total of loan to be repaid - amount borrowed
16,400 - 10,000 = 6,400 AED
Interest = loan x interest rate x time
we have all the parameters of the above equation apart from the interest rate. We can thus determine the interest rate from the above equation
6,400 AED = 10,000 x interest rate x 7
6,400 AED = 70,000 x interest rate
Divide both sides by 70,000 to find a value for interest rate
interest rate = 0.091429 = 9.14%


Positive sine, negative tangent, means we have a negative cosine. We're talking about the second quadrant.



We know it's negative,

Answer: -(1/3)√5