Question

144:(15n-3n)=12143:(5x+6x)=13​

Answer 1

$144:(15n-3n)=12 \\ 144 \div 12n = 12 \\ \frac{12}{n} = 12 \\ n = 1$

$143:(5x+6x)=13 \\ 143 \div 11x = 13 \\ \frac{13}{x} = 13 \\ 13x = 13 \\ x = 1$

Удачи!

Answer 2

It appears that you're trying to set up a proportion equation involving ratios. Let's break down the equation step by step:

1. The first ratio is 144:(15n-3n), which simplifies to 144:12n.

2. The second ratio is 12143:(5x+6x), which simplifies to 12143:11x.

3. The third ratio is 13.

Now, you can set up the proportion equation:

144/(12n) = 12143/(11x) = 13

You have two equal ratios on either side of the equation. To solve for either 'n' or 'x,' you can cross-multiply and then solve for the variable you're interested in.

Cross-multiplying the first and second parts:

144 * 11x = 12143 * 12n

Now, simplify each side:

1584x = 145716n

To isolate 'n,' divide both sides by 145716:

n = (1584x) / 145716

Now, if you have a specific value for 'x,' you can calculate the corresponding value of 'n' using this equation. Keep in mind that this is a general solution, and you would need to know the value of 'x' to find the exact value of 'n.'