What is the answer to this equation? Must solve for x. x+5=12x−4

Mathematics

2 answers:

natulia [17]3 years ago

8 0

Answer:

x = 9/11

Step-by-step explanation:

x + 5 = 12x - 4

Subtract x from both sides

x + 5 - x = 12x - x - 4

5 = 11x - 4

Add 4 to both sides

5+ 4 = 11x - 4 + 4

9 = 11x

Divide both sides by 11

9/11 = 11x/11

9/11 = x

x = 9/11

AleksAgata [21]3 years ago

7 0

Answer:

$x - 12x = - 4 - 5 \\ 11x = 9 \\ x = \frac{9}{11} \\$

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3 years ago

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Sphinxa [80]

Answer:

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Step-by-step explanation:

$\text{Use:}\\\\\sin^2\theta+\cos^2\theta=1\to\cos\theta=\pm\sqrt{1-\sin^2\theta}\\\\\tan\theta=\dfrac{\sin\theta}{\cos\theta}\\\\\sec\theta=\dfrac{1}{\cos\theta}\\\\==========================\\\\\sin\theta=-\dfrac{5}{7}\\\\\cos\theta=\pm\sqrt{1-\left(-\frac{5}{7}\right)^2}=\pm\sqrt{1-\frac{25}{49}}=\pm\sqrt{\frac{24}{49}}=\pm\dfrac{\sqrt{24}}{\sqrt{49}}=\pm\dfrac{\sqrt{24}}{7}\\\\\sec\theta=\pm\dfrac{1}{\frac{\sqrt{24}}{7}}=\pm\dfrac{7}{\sqrt{24}}$

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