Answer:
-7//40
Step-by-step explanation:
Answer: 
<u>Move all terms to the left</u>
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<u>Add all the numbers together, and all the variables</u>
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<u>Multiply elements</u>
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<u>Move all terms containing d to the left, all other terms to the right</u>
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Answer:
3.
Step-by-step explanation:
Note the prime factorization of 120,

Therefore, there are 3 distinct prime factors, namely 2, 3 and 5.
Answer:
y=x\\
x=y^{2} + 12y\\
y^{2} + 12y -x = 0\\
Delta = (12^{2}) - 4.1.(-x) = 144 +4X = 36.(4+x)
\sqrt{Delta} = 6 . \sqrt{(4+x)} \\
y' = \frac{-12 + 6.(\sqrt{(4+x)}}{2} = -6 + 3.\sqrt{(4+x)}\\
y" = -6 - 3.\sqrt{(4+x)}\\\\
y' = 3.\sqrt{(4+x)} - 6\\
y''= -3.\sqrt{(4+x)} - 6\\
Cx-4=7
cx=11
x=11/c
Use inverse operations to isolate x on one side of the equation.