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3 years ago

Solve this equation: 80 = 3y + 2y + 4 + 1.

2 answers:

6 0

Let us first write down the given equation.
80 = 3y + 2y + 4 + 1
80 = 5y + 5
80 - 5 = 5y
75 = 5y
Just reversing both sides we get
5y = 75
Now dividing both sides by 5 we get
y = 15
So the value of y is 15. I hope the procedure for solving the problem is clear to you. In future you can solve such problems with ease following the procedure described.

Pavel [41]3 years ago

6 0

$80 = 3y + 2y + 4 + 1 \\ \\ 80 = 5y + 4 + 1 \\ \\ 80 = 5y + 5 \\ \\ 80 - 5 = 5y \\ \\ 75 = 5y \\ \\ \frac{75}{5} = y \\ \\ 15 = y \\ \\ y = 15 \\ \\ Answer: \fbox {y = 15}$

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3 years ago

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3 years ago

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Vera_Pavlovna [14]

Answer:

x = 4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2(8−12x)+8x=−25x+52

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3 years ago

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Answer:

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Step-by-step explanation:

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$\alpha =( 100 -97)\%$

=> $\alpha = 0.03$

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$Z_{\frac{\alpha }{2} } = 2.17$

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$n =[ \frac{Z_{\frac{\sigma }{2 } } * \sigma }{E} ]^2$

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3 years ago