61.1k views
2 votes
What is 4x – 5 = 16 ? I have to show my work

User Amal Ps
by
5.4k points

2 Answers

8 votes

Answer: x = 21/4

First, you want to Add 5 to both sides of the equation:

4x - 5 + 5 = 16 + 5.

Then you want to simplify:

4x = 21.

Divide both sides of the equation by the same term:

4x/4 = 21/4.

Then you want to simplify:

x = 21/4.

The final solution is:

x = 21/4

Exact Form:

x = 21/4

Decimal Form:

x = 5.25

Mixed Number Form:

x = 5 1/4

Explanation:

Hope this helps =)

User Kayvan N
by
6.0k points
10 votes
x = 21/4 or x = 5.25

4x - 5 = 16
+ 5 + 5
4x = 21
/4 /4
x = 21/4 = 5.25

Hope this helps!
User Hasankzl
by
6.5k points