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tigry1 [53]
3 years ago
12

Solve the equation for x. x + 13 = 22​

Mathematics
2 answers:
AveGali [126]3 years ago
6 0
X=22-13
x=9
Ya. . . . .
marysya [2.9K]3 years ago
6 0

x + -13 = 22

Reorder the terms:

-13 + x = 22

Solving

-13 + x = 22

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '13' to each side of the equation.

-13 + 13 + x = 22 + 13

Combine like terms: -13 + 13 = 0

0 + x = 22 + 13

x = 22 + 13

Combine like terms: 22 + 13 = 35

x = 35

Simplifying

x = 35

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Answer: 6x

Work Shown:

For each step, the logs are all base b. This is to save time and hassle of writing tricky notation of having to write the smaller subscript 'b' multiple times. The first rule to use is that log(x^y) = y*log(x) for any base of a logarithm. The second rule is that \log_b(b) = 1 meaning that the log base of itself is 1

log(b^(6x)) = 6x*log(b) .... pull down exponent using the first rule above

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4 0
3 years ago
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crimeas [40]

Answer:

y = 1/2x

Step-by-step explanation:

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5 0
3 years ago
A drink is made from orange juice and lemonade in the ratio 3 : 7. How much lemonade is needed if 60 ml of orange juice is used?
lina2011 [118]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
What is the radius of the circle who’s equation is x^2 + y^2 = 9
Svetllana [295]

Answer:

r=3

Step-by-step explanation:

  • The equation of a circumference is (x-a)^2+(y-b)^2=r^2.
  • Then , in this case r^2=9, and then to know the value of r we just simply have to calculate the square root of 9, which is 3.
8 0
3 years ago
If x=9 and y=−3, evaluate the following expression:7(2x−3y)​
LuckyWell [14K]

Answer:

189

Step-by-step explanation:

You can replace the values of x with 9 and the values of y with (-3).

7(2x-3y) = 7(2 × 9 - 3 × -3)

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             = 7(18+9)

             = 7 × 27

             = 189

7 0
3 years ago
Read 2 more answers
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