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15 votes
3x − x − 1 = 15
What is x

2 Answers

4 votes

Answer:

3x-x=15+1

2x=16

x=16/2

x=8

User Oliver McPhee
by
7.6k points
9 votes

Answer: x=8

Explanation:

Step 1: Simplify both sides of the equation.

3x−x−1=15

3x+−x+−1=15

(3x+−x)+(−1)=15(Combine Like Terms)

2x+−1=15

2x−1=15

Step 2: Add 1 to both sides.

2x−1+1=15+1

2x=16

Step 3: Divide both sides by 2.

2x /2 = 16 /2

x=8

User Thriggle
by
8.3k points

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