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Greeley [361]
3 years ago
5

Y = 2x - 3 and x = 7​

Mathematics
2 answers:
Degger [83]3 years ago
8 0
Y=11

explanation- when u put 7 for x you multiply that by 2 then minsus 3 which gives u 11
Sphinxa [80]3 years ago
4 0

Answer:

y = 11

Step-by-step explanation:

Step 1:

y = 2x - 3        Equation

Step 2:

x = 7        Given

Step 3:

y = 2 ( 7 ) - 3      Input x value

Step 4:

y = 14 - 3        Multiply

Answer:

y = 11          Subtract

Hope This Helps :)

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Find all the square roots of x2 ≡ 53 (mod 77)
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Answer:

x=\pm\sqrt{77n+53}

Step-by-step explanation:

We have been given an equivalence equation x^2\equiv 53\text{ (mod } 77). We are asked to find all the square root of the given equivalence equation.

Upon converting our given equivalence equation into an equation, we will get:

x^2-53=77n

Add 53 on both sides:

x^2-53+53=77n+53

x^2=77n+53

Take square root of both sides:

x=\pm\sqrt{77n+53}

Therefore, the square root for our given equation would be x=\pm\sqrt{77n+53}.

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Novay_Z [31]

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<u>Number 11</u>: 1/4 = 9/36  and 1/9 = 4/36

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