## Answer

## Step-by-step explanation

Problem to solve:

Apply fraction cross-multiplication

Integrate both sides, the left side with respect to $y$, and the right side with respect to $x$

The integral of the sum of two or more functions is equal to the sum of their integrals

The integral of a constant is equal to the constant times the integral's variable

The integral of a constant by a function is equal to the constant multiplied by the integral of the function

Expand the integral

The integral of a constant is equal to the constant times the integral's variable

The integral of a constant by a function is equal to the constant multiplied by the integral of the function

Applying the power rule for integration, $\displaystyle\int x^n dx=\frac{x^{n+1}}{n+1}$, where $n$ represents a constant function

Any expression multiplied by $1$ is equal to itself

The integral of a constant by a function is equal to the constant multiplied by the integral of the function

Apply the power rule for integration, $\displaystyle\int x^n dx=\frac{x^{n+1}}{n+1}$, where $n$ represents a constant function

Simplify the fraction by $3$

Applying the power rule for integration, $\displaystyle\int x^n dx=\frac{x^{n+1}}{n+1}$, where $n$ represents a constant function

As the integral that we are solving is an indefinite integral, when we finish we must add the constant of integration