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exis [7]
3 years ago
5

Twice the sum of a number and 7 is equal to three times the difference of the number and 8. Find the number.

Mathematics
1 answer:
amm18123 years ago
3 0

Answer:

the number is 10.

Step-by-step explanation:

2(x + 7) = 3(x - 8)

2x + 14 = 3x - 24

2x = 3x -10

x = 10

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。☆✼★ ━━━━━━━━━━━━━━  ☾  

5 : 20

Divide both sides by 5 to get the answer

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Thus, the answer is 1 : 4

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8 0
2 years ago
Adiya said that the first step to solving the quadratic equation x2 + 6 = 20x by completing the square was to divide 6 by 2, squ
kicyunya [14]
Adiya’s method is not correct. To form a perfect square trinomial, the constant must be isolated on one side of the equation. Also, the coefficient of the term with an exponent of 1 on the variable is used to find the constant in the perfect square trinomial. Adiya should first get the 20x term on the same side of the equation as x2. Then she would divide 20 by 2, square it, and add 100 to both sides. 
6 0
3 years ago
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(x ^ 2 - 4x + 7)(2x - 2)
Marat540 [252]
Simplify the expression.

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3 years ago
What is the degree of the monomial 9xy³z⁷
xxMikexx [17]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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klemol [59]

Answer:    7

Step-by-step explanation:

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