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mario62 [17]
3 years ago
14

7+x/3 = 2x-5 Please help with my maths question

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
6 0

Answer:

36/5

Step-by-step explanation:

First, we need to isolate the x.

7+x/3=2x-5

x/3=2x-12

x=6x-36

-5x=-36

x=36/5

Hoped this helped!

zavuch27 [327]3 years ago
5 0

Answer:

<h2> X= 22/7</h2>

Step-by-step explanation:

7+X/3 = 2x - 5

7 + x = 3( 2x - 5) [ cross multiplication]

7 + X = 6x - 15

Move variable to LHS and change its sign

X - 6x + 7 = -15

Move constant to R.H.S and change its sign

X - 6x = -15 - 7

Collect like terms

-5x = -15 - 7

Calculate the difference

-5x = -22

The difference sign(-) will be cancelled in both sides

5x = 22

divide both sides of the equation by 5

5x/5 = 22/5

calculate

X = 22/5

Hope this helps..

Good luck on your assignment...

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May someone solve and give explanation
torisob [31]

Answer:

x = 15.7945

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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  3. Exponents
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  • Division Property of Equality
  • Addition Property of Equality
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<u>Trigonometry</u>

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Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

Angle θ = 33°

Opposite Leg = <em>x</em>

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<u>Step 2: Find Angle</u>

  1. Substitute in variables [sine]:                                                                           sin33° = x/29
  2. [Multiplication Property of Equality] Multiply 29 on both sides:                    29sin33° = x
  3. Rewrite:                                                                                                             x = 29sin33°
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Step-by-step explanation:

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