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labwork [276]
4 years ago
9

2y-10(y-3)=70 Help!! ASAP

Mathematics
2 answers:
kipiarov [429]4 years ago
6 0

Answer:

y=-5

put the answer in the equation

kirill115 [55]4 years ago
4 0

Answer:

y = -5

Step-by-step explanation:

2y - 10y + 30 = 70

-8y + 30 = 70

-8y = 70 - 30

-8y = 40

y= -5

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Consider the equation: 12x=13-x^212x=13−x 2 12, x, equals, 13, minus, x, squared 1) Rewrite the equation by completing the squar
Flauer [41]

Answer:

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Step-by-step explanation:

Given

12x = 13 - x^2

Using Completing the Square

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x^2 + 12x = 13 - x^2 + x^2

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Factorize

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x(x + 6) + 6(x + 6) = 49

(x + 6)(x + 6) = 49

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Hence, the equation is (x + 6)^2 = 49

Solving further

Take square root of both sides

(x + 6) = \sqrt{49}

x + 6 = \±7

x  = \±7- 6

This implies that

x = 7 - 6     or x = -7 -6

x = 1    or x = -13

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The answer you are looking for is 5.8 times greater 
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4 years ago
Read 2 more answers
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