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motikmotik
3 years ago
10

Solve for x in the figure. 78° [(5x-210

Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
4 0

Answer:

78 = (5x - 2) \\  \\ 78 = 5x - 2 \\  \\ 78 + 2  = 5x \\  \\ 80 = 5x \\  \\ x =  \frac{80}{5}  \\  \\ x = 16

it's was vertical angel they are equal ( = ) each other

it's was helpful to you

Elza [17]3 years ago
3 0
<h2><u>Solution</u><u>:</u><u>-</u></h2>

<u>\\  \mapsto78 = (5x - 2)</u>

<u>\\  \mapsto78 = 5x - 2</u>

<u>\\  \mapsto78 + 2 = 5x</u>

<u>\\  \mapsto80 = 5x</u>

<u>\\  \mapsto \frac{80}{5}  = x</u>

<u>\\  \mapsto16 = x</u>

<u>\\ \mapsto \: x = 16</u>

<h2><u>Answer</u><u>:</u><u>-</u></h2>

[Hence, the value of x is 16.]

<h3>Hope it's helpful !</h3>
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What is an equation that goes through the point (-7, 10) and is perpendicular to the line -2x-4y=9
algol13

Step-by-step explanation:

m1.m2= -1

(4y = -2x -9)= (y = -1x/2 -9/4)

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7 0
3 years ago
Hello pls help meeee<br> )
In-s [12.5K]

Answer:

(4, 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

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

<u>Algebra I</u>

  • Terms/Coefficients
  • Coordinates (x, y)
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Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = 2x - 7

y = -x + 5

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

<em>Substitution</em>

  1. Substitute in <em>y</em>:                                                                                                2x - 7 = -x + 5
  2. [Addition Property of Equality] Isolate <em>x</em> terms:                                            3x - 7 = 5
  3. [Addition Property of Equality] Isolate <em>x</em> term:                                              3x = 12
  4. [Division Property of Equality] Isolate <em>x</em>:                                                       x = 4

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

  1. Define original equation:                                                                               y = -x + 5
  2. Substitute in <em>x</em>:                                                                                                y = -4 + 5
  3. Add:                                                                                                                 y = 1
7 0
3 years ago
Solve y = x - 5 if the domain is 5
Lunna [17]
If the domain is 5, you just put that five where you find an x. So,
y = 5 - 5
y = 0

Domain means those are the numbers that will be set as x's in the equation
6 0
3 years ago
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