# How do you solve the proportion #(x-1)/4 = 5/(x+7)#?

Cross multiply

Complete the square

There is no solution for the set of numbers 'Real'

There is a solution for the set of numbers 'Complex'

By signing up, you agree to our Terms of Service and Privacy Policy

To solve the proportion (x-1)/4 = 5/(x+7), you can cross-multiply. Multiply the numerator of the first fraction (x-1) by the denominator of the second fraction (x+7), and multiply the denominator of the first fraction (4) by the numerator of the second fraction (5). This gives you (x-1)(x+7) = 4(5). Expand and simplify the equation to get x^2 + 6x - 7 = 20. Rearrange the equation to x^2 + 6x - 27 = 0. Factor the quadratic equation or use the quadratic formula to find the values of x.

By signing up, you agree to our Terms of Service and Privacy Policy

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7