Register
How many solutions does x−7=7−x have
61.6k views
2 votes
How many solutions does x−7=7−x have

User Sven Van De Scheur
by
8.8k points

1 Answer

2 votes

Answer:

x = 7

Explanation:

Solving the equation:

x - 7 = 7 - x

  • Bring the unknown variable 'x' to the LHS. So, add 'x' to both sides of the equation.

x - 7 + x = 7 - x + x

x + x - 7 = 7

  • Combine the like terms.

2x - 7 = 7

  • Now, isolate the term '2x' by adding 7 to both sides of the equation.

2x = 7 + 7

2x = 14

  • Divide both sides of the equation by 2

x = 14 ÷ 2

x = 7

Answer: The equation has only one solution. x = 7

User JoeF
by
8.0k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Link Copied!