Westonci.ca is your trusted source for accurate answers to all your questions. Join our community and start learning today! Discover a wealth of knowledge from professionals across various disciplines on our user-friendly Q&A platform. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

Solve for x and y.

[tex]\[ \left(4x + \frac{3}{y}, 9 \right) = \left(7, 3x + \frac{6}{y} \right) \][/tex]


Sagot :

To solve the given system of equations, we'll equate the corresponding components of the tuples and solve them step by step:

The given tuples are:

[tex]\[ \left(4 x + \frac{3}{y}, 9\right) = \left(7, 3 x + \frac{6}{y}\right) \][/tex]

From this, we obtain two equations by equating the components:

[tex]\[ 4x + \frac{3}{y} = 7 \quad \text{(Equation 1)} \][/tex]
[tex]\[ 9 = 3x + \frac{6}{y} \quad \text{(Equation 2)} \][/tex]

We'll solve these equations simultaneously.

Step 1: Start with Equation 2:

[tex]\[ 9 = 3x + \frac{6}{y} \][/tex]

Subtract [tex]\(3x\)[/tex] from both sides to isolate [tex]\(\frac{6}{y}\)[/tex]:

[tex]\[ 9 - 3x = \frac{6}{y} \][/tex]

Rewriting the equation, we find:

[tex]\[ \frac{6}{y} = 9 - 3x \][/tex]

Taking the reciprocal on both sides:

[tex]\[ \frac{y}{6} = \frac{1}{9 - 3x} \][/tex]

Multiplying both sides by 6 to solve for [tex]\(y\)[/tex]:

[tex]\[ y = \frac{6}{9 - 3x} \][/tex]

Step 2: Substitute [tex]\(y\)[/tex] from Equation 2 into Equation 1:

[tex]\[ 4x + \frac{3}{\frac{6}{9 - 3x}} = 7 \][/tex]

Simplify the fraction:

[tex]\[ 4x + \frac{3(9 - 3x)}{6} = 7 \][/tex]

[tex]\[ 4x + \frac{27 - 9x}{6} = 7 \][/tex]

Combine the terms over a common denominator:

[tex]\[ 4x + \frac{27 - 9x}{6} = 7 \][/tex]

Rewrite [tex]\(4x\)[/tex] with a common denominator:

[tex]\[ \frac{24x}{6} + \frac{27 - 9x}{6} = 7 \][/tex]

Combine the terms in the numerator:

[tex]\[ \frac{24x + 27 - 9x}{6} = 7 \][/tex]

Simplify the numerator:

[tex]\[ \frac{15x + 27}{6} = 7 \][/tex]

Multiply both sides by 6 to clear the fraction:

[tex]\[ 15x + 27 = 42 \][/tex]

Subtract 27 from both sides:

[tex]\[ 15x = 15 \][/tex]

Divide by 15:

[tex]\[ x = 1 \][/tex]

Step 3: Substitute [tex]\(x = 1\)[/tex] back into the equation [tex]\(y = \frac{6}{9 - 3x}\)[/tex]:

[tex]\[ y = \frac{6}{9 - 3 \cdot 1} \][/tex]

[tex]\[ y = \frac{6}{6} \][/tex]

[tex]\[ y = 1 \][/tex]

Thus, the solution to the given system of equations is:

[tex]\[ x = 1 \quad \text{and} \quad y = 1 \][/tex]