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Solve for [tex]x[/tex].

[tex]\[ -\frac{2x}{2x-10} + 3 = \frac{10}{2x-10} \][/tex]

If there is no solution, enter "none." If all real numbers are solutions, enter "all."

[tex]\[ x = \square \][/tex]


Sagot :

Absolutely! Let's solve the equation step-by-step:

Given equation:

[tex]\[ -\frac{2x}{2x - 10} + 3 = \frac{10}{2x - 10} \][/tex]

First, we want to simplify and solve this rational equation. To make it simpler, let's rewrite it with a common denominator. Notice that both fractions share the denominator [tex]\(2x - 10\)[/tex].

Rewrite the left-hand side:

[tex]\[ 3 = \frac{3(2x - 10)}{2x - 10} \][/tex]

So the equation becomes:

[tex]\[ -\frac{2x}{2x - 10} + \frac{3(2x - 10)}{2x - 10} = \frac{10}{2x - 10} \][/tex]

Combine the fractions on the left-hand side:

[tex]\[ \frac{-2x + 3(2x - 10)}{2x - 10} = \frac{10}{2x - 10} \][/tex]

Simplify the numerator on the left-hand side:

[tex]\[ -2x + 3(2x - 10) = -2x + 6x - 30 = 4x - 30 \][/tex]

Thus, the equation becomes:

[tex]\[ \frac{4x - 30}{2x - 10} = \frac{10}{2x - 10} \][/tex]

Since the denominators are equal, we can set the numerators equal to each other:

[tex]\[ 4x - 30 = 10 \][/tex]

Solve for [tex]\(x\)[/tex]:

[tex]\[ 4x - 30 = 10 \\ 4x = 40 \\ x = 10 \][/tex]

Before we conclude that [tex]\(x = 10\)[/tex] is indeed a solution, we must check if it makes any denominators zero, because division by zero is undefined.

Check the denominator [tex]\(2x - 10\)[/tex]:

If [tex]\(x = 10\)[/tex],

[tex]\[ 2(10) - 10 = 20 - 10 = 10 \neq 0 \][/tex]

Since the denominator does not become zero, [tex]\(x = 10\)[/tex] is a valid solution.

Therefore, the solution to the equation is:

[tex]\[ x = 10 \][/tex]