### Home > MC2 > Chapter 8 > Lesson 8.2.4 > Problem 8-66

8-66.

Write out equations to represent these phrases.

Solve for *x* in the first equation: *x* = 64

Substitute 64 for *x* in the second equation.

8-66.

Write out equations to represent these phrases.

Solve for *x* in the first equation: *x* = 64

Substitute 64 for *x* in the second equation.