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Leni [432]
3 years ago
8

Solve the equation 7x - 4 =4x -1

Mathematics
2 answers:
algol133 years ago
7 0

Answer:

x= 1

Step-by-step explanation:

7x-4x= -1+4

3x = 3

x= 1

Phantasy [73]3 years ago
5 0

Answer:

x = 1

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

Step-by-step explanation:

<u>Step 1: Define</u>

7x - 4 = 4x - 1

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 4x on both sides:                    3x - 4 = -1
  2. Add 4 to both sides:                              3x = 3
  3. Divide 3 on both sides:                          x = 1
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Solve the right angle trig problem.
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Answer:

x = 53.6588°

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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  2. Parenthesis
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  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

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Step-by-step explanation:

<u>Step 1: Define</u>

We are given a right triangle. We can use trig to find the missing angle.

<u>Step 2: Identify Variables</u>

<em>POV from angle x</em>

Angle = <em>x</em>

Adjacent = 16

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<u>Step 3: Solve for </u><em><u>x</u></em>

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In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq
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Answer:

see explanation

Step-by-step explanation:

let pq = x

given oq - pq = 1 then oq = 1 + x

Using Pythagoras' identity, then

(oq)² = 7² + x²

(1 + x)² = 49 + x² ( expand left side )

1 + 2x + x² = 49 + x² ( subtract 1 from both sides )

2x + x² = 48 + x² ( subtract x² from both sides )

2x = 48 ( divide both sides by 2 )

x = 24 ⇒ pq = 24

and oq = 1 + x = 1 + 24 = 25 ← hypotenuse

sinq = \frac{opposite}{hypotenuse} = \frac{7}{25}

cosq = \frac{adjacent}{hypotenuse} = \frac{24}{25}



6 0
3 years ago
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