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Ivan
2 years ago
13

Solve for x (please write work)

Mathematics
2 answers:
ruslelena [56]2 years ago
8 0

Answer:

Step-by-step explanation:

To solve for x, bring the variable to one side, and bring all the remaining values to the other side by applying arithmetic operations on both sides of the equation. Simplify the values to find the result.

Aleks04 [339]2 years ago
7 0

Answer:

x = -9

Step-by-step explanation:

12 + 2x + 24 = 27 + x

(12 + 24) + 2x = 27 + x

36 + 2x = 27 + x

subtract 27 from both sides

36-27 + 2x = 27-27 + x

9 + 2x = x

subtract x from both sides

9 + x = 0

subtract 9 from both sides

x = -9

(the steps could've been faster but that shows the most work)

check:

12 + 2(-9) + 24 = 27 + (-9)

36 - 18 = 18

18 = 18

True!

so -9 is correct

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Why isn't D the answer? Isn't it also positive and concave up?
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Step-by-step explanation:

At d, f'(x) is increasing (concave up), but it is not positive.  The tangent line at that point has a negative slope.

7 0
4 years ago
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3 years ago
Evaluate the algebraic expression for the given values of x=3 and y=4 .<br> ​<br> ​ 7x−2y−1 =
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Answer:

12

Step-by-step explanation:

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5 0
4 years ago
Read 2 more answers
The image below shows 2 complementary angles.
oksian1 [2.3K]

Answer:

a)(x + 3) + (2x - 3) = 90

b)(x + 3) + (2x - 3) = 90

    -3                     -3

-------------------------------

x + (2x-3)         = 87

          +3           +3

------------------------------

x + 2x                = 90

Simpify: x + 2x = 3x

3x/3 = 3

90/3 = 30

x = 30º

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Step-by-step explanation:

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Answer:

600

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