Question

Solve the equation. If there is no solution, write no solution. 10|n|-3=37.

A. n = 30 or n = –50
B. no solution
C. n = 4 or n = –4
D. n = 4

Answer 1

C. n=4 or n=-4

Explanation:

10lnl-3=37 original problem

+3=+3 add 3 to both sides

10lnl=40 solve that portion

10lnl=40

10 divide both sides by 10 to isolate the variable

lnl=4 since n is an absolute value, it is the distance from zero making the solution 4 or -4.