### Home > PC > Chapter 6 > Lesson 6.2.2 > Problem 6-86

6-86.

Substituting '*u*' into the equation.

10sin(*u*) + 24 = 20

10sin(*u*) = −4

Using a calculator, *u* = −0.4115.

Substitute back to solve for *x*.

6-86.

Substituting '*u*' into the equation.

10sin(*u*) + 24 = 20

10sin(*u*) = −4

Using a calculator, *u* = −0.4115.

Substitute back to solve for *x*.