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vovangra [49]
3 years ago
6

Solve the equation for x, x-3= -x+5

Mathematics
2 answers:
DanielleElmas [232]3 years ago
8 0

x−3=−x+5

Add x to both sides.

x−3+x=−x+5+x

2x−3=5

Add 3 to both sides.

2x−3+3=5+3

2x=8

Divide both sides by 2.

2x /2 = 8 /2

x= 4

Oksanka [162]3 years ago
6 0

Answer:

x=4

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Hope this helps!!! Brainliest is appreciated.

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Answer:

Perimeter is 17.07

Step-by-step explanation:

We know that DF = EF = 5 cm, since D and E are the midpoints of AC and AB, both of which are 10 cm in length.

We need to use the Pythagorean theorem to get the length of DE.

DE = \sqrt{5^{2} +5^{2}}=\sqrt{50}  = 7.07\\

So the perimeter of DEF is 5 + 5 + 7.07 = 17.07

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WINSTONCH [101]

Step-by-step explanation:

2² * 3 * 5 = 4 * 3 * 5 = 60.

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xz_007 [3.2K]

Answer:

A) 3 in

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

<u>Geometry</u>

  • Surface Area of a Sphere: SA = 4πr²
  • Diameter: d = 2r

Step-by-step explanation:

<u>Step 1: Define</u>

SA = 23 in²

<u>Step 2: Find </u><em><u>r</u></em>

  1. Substitute [SAS]:                    23 in² = 4πr²
  2. Isolate <em>r </em>term:                         23 in²/(4π) = r²
  3. Isolate <em>r</em>:                                  √[23 in²/(4π)] = r
  4. Rewrite:                                   r = √[23 in²/(4π)]
  5. Evaluate:                                 r = 1.35288 in

<u>Step 3: Find </u><em><u>d</u></em>

  1. Substitute [D]:                    d = 2(1.35288 in)
  2. Multiply:                              d = 2.70576 in
  3. Round:                                d ≈ 3 in
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The answer is 3 for sure.
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