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Lera25 [3.4K]
3 years ago
10

Solve −2( x+2)−7=−3(x+5) for x

Mathematics
2 answers:
Ghella [55]3 years ago
8 0

Answer:

x= 9

Step-by-step explanation:

good luck

Tju [1.3M]3 years ago
3 0

Answer:

x=-4

Step-by-step explanation:

-2 (x+2) - 7 = -3(x+5)

-2x-4-7=-3x-15

-2x+3x=-15+7+4

x=-4

hope it helped:)

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Please help, would be greatful :)
tankabanditka [31]

Answer:

x ≈ 25.5°

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
  • Subtract Property of Equality

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

<u>Step 1: Identify Variables</u>

Angle θ = <em>x</em>°

Opposite Leg = 10

Hypotenuse = 21

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

  1. Substitute [tangent]:                    tanx° = 10/21
  2. Inverse trig:                                  x° = tan⁻¹(10/21)
  3. Evaluate:                                      x = 25.4633°
  4. Round:                                          x ≈ 25.5°
8 0
3 years ago
What is the slope of the line with the equation 3y+5x=4
marta [7]

I think none of these are right. It's Y=-5/3x +4/3

7 0
3 years ago
Read 2 more answers
K is the midpoint of JL. JK = 2x + 5 and JL = 50.
Sergeu [11.5K]
Steve set the equation equal to 50 which is the entire length of JL. instead he should've set the equation equal to 25, since it's half of 50 and would represent the midpoint. he should've said 2x + 5 = 25
8 0
3 years ago
Find the area and perimeter.
DanielleElmas [232]

Step-by-step explanation:

Perimeter = 12 + x + 6 + 2x + 5

Perimeter = 3x + 23.

Area = ½ × b × h

Area = ½ × 12 × (x + 6)

Area = 6(x + 6)

Area = 6x + 36

4 0
3 years ago
Round the number 246.13687 to the nearest thousandth
sashaice [31]

Answer:

246.137

Step-by-step explanation:

246.13687 ≈ 246.137 (rounded to the nearest thousandth)

7 0
3 years ago
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