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Solve for [tex]u[/tex].

[tex]\frac{4}{u-7} - \frac{6}{u-7} = 2[/tex]

If there is more than one solution, separate them with commas.
If there is no solution, click on "No solution".

[tex]u = \boxed{\phantom{x}}[/tex]

No solution: [tex]\boxed{\phantom{x}}[/tex]


Sagot :

Sure, let's solve the equation step by step.

Given:
[tex]\[ \frac{4}{u-7} - \frac{6}{u-7} = 2 \][/tex]

First, combine the fractions on the left-hand side:
[tex]\[ \frac{4}{u-7} - \frac{6}{u-7} = \frac{4 - 6}{u-7} \][/tex]

Simplify the numerator:
[tex]\[ \frac{4 - 6}{u-7} = \frac{-2}{u-7} \][/tex]

So the equation becomes:
[tex]\[ \frac{-2}{u-7} = 2 \][/tex]

To eliminate the fraction, multiply both sides of the equation by [tex]\(u-7\)[/tex]:
[tex]\[ -2 = 2(u - 7) \][/tex]

Next, distribute the 2 on the right-hand side:
[tex]\[ -2 = 2u - 14 \][/tex]

Now, solve for [tex]\(u\)[/tex]. Start by adding 14 to both sides:
[tex]\[ -2 + 14 = 2u \][/tex]

Simplify:
[tex]\[ 12 = 2u \][/tex]

Finally, divide both sides by 2:
[tex]\[ \frac{12}{2} = u \][/tex]

So we have:
[tex]\[ u = 6 \][/tex]

Therefore, the solution is:
[tex]\[ u = 6 \][/tex]