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Elodia [21]
3 years ago
11

What is the value of x in the solution to the system of linear equations?

Mathematics
2 answers:
xenn [34]3 years ago
6 0
Since y=x-4 you would simply just plug that into 'y' on the other equation, given: x-4=3x+2.
Subtract x from both sides, it will leave you with -4=2x+2.
Next you would subtract 2 from both sides, leaving you with -6=2x.
All you need now is to get rid of the coefficient in front of 'x' so you divide both sides with 2, leaving you with your answer: -3=x.

Answer: -3=x

Hope this helps!
alisha [4.7K]3 years ago
6 0
Hi there! The answer is x = -3

y = 3x + 2
y = x - 4

Since y equals 3x + 2 AND y equals x - 4, we can say that 3x + 2 equals x - 4. So, we get
3x + 2 = x - 4

Collect the terms (subtract x from both sides and subtract 2 from both sides)
2x = - 6

Divide by 2
x = \frac{ - 6}{2} = - 3

Therefore x = -3
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The trigonometric identity can be used to solve for the height of the blue ladder that is leaning against the building is \rm sin=\dfrac{o}{h}.

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Which trigonometric identity can be used to solve for the height of the blue ladder that is leaning against the building?.

<h3>Trigonometric identity</h3>

Trigonometric Identities are the equalities that involve trigonometry functions and hold true for all the values of variables given in the equation.

Trig ratios help us calculate side lengths and interior angles of right triangles:

The trigonometric identity that can be used to solve for the height of the blue ladder is;

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Hence, the trigonometric identity can be used to solve for the height of the blue ladder that is leaning against the building is \rm sin=\dfrac{o}{h}.

To know more about trigonometric identity click the link given below.

brainly.com/question/1256744

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