20,066 views
10 votes
10 votes
Solve 2x + 13 = 17 for x, and then use that number to find the value of 3x + 1

User George Sotiropoulos
by
2.7k points

2 Answers

16 votes
16 votes

Answer: 7

Explanation:

To solve the problem you need to use algebra.


2x+13=17\\

Subtract 13 on both sides.


2x=4

Proceed to divide by 2 to solve for x.


x=2

Now using your x-value, plug that into 3x+1 to get your solution.


3x+1\\3(2)+1=7

User Dawit Abraham
by
3.3k points
14 votes
14 votes

Explanation:

2x+13=17

2x=17-13

2x=4

x=4/2

x=2

then,

3x+1

= 3*2+1

= 6+1

= 7

User ZorleQ
by
3.5k points