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Leni [432]
3 years ago
5

How can i work out 12=2(7x + 8)

Mathematics
2 answers:
Vesna [10]3 years ago
5 0

Step-by-step explanation:

2(7x +8)=12

2(7x +8)/2 =12/2

7x +8 =6

7x=6-8

7x = -2

x= -2/7

nika2105 [10]3 years ago
3 0

Hi there! :)

12=2(7x+8)

Use the Distributive property:

12=14x+16

Move all the numbers to the right side and the variables to the left side:

-14x=16-12

-14x=4

Divide both sides by -14 to isolate x:

x=-\frac{4}{14} \\-\frac{2}{7}

<h2>Therefore, x=-\frac{2}{7}</h2>

Hope this helps you!

~Just a felicitous girlie

#HaveAnAmazingDay

SilentNature :)

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yanalaym [24]

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3 years ago
ALGEBRA 2!!!!!!!HELP
Inessa [10]

Answer:

x = - 1, x = - 11

Step-by-step explanation:

Given

2| x + 6 | - 4 = 6 ( add 4 to both sides )

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| x + 6 | = 5

The absolute value function always gives a positive result, but the expression inside can be positive or negative, that is

x + 6 = 5 or - (x + 6) = 5

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x + 6 = 5 ( subtract 6 from both sides )

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8 0
3 years ago
Steven starts a savings account with $10,000. He earns 7% annual interest. How much will be in the account after 6 years. Round
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So the equation is A = P(1+rt)
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7 0
3 years ago
Three angles of a quadrilateral are 75,120, 90,then the fourth angle..​
Roman55 [17]

Answer:

75

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Geometry</u>

  • Sum of Angles in a Quadrilateral: 360

Step-by-step explanation:

<u>Step 1: Set up</u>

75 + 120 + 90 + ∠4 = 360

<u>Step 2: Solve</u>

  1. Add:                                                                                                                   285 + ∠4 = 360
  2. [Subtraction Property of Equality] Subtract 285 on both sides:                   ∠4 = 75
5 0
3 years ago
Please help me I’m so confused right now
Gemiola [76]

Answer:

5. 100/b+24   6. 5m+13

Step-by-step explanation:

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