Check your understanding

Solve the following problems.

1. If 10 is added to half a number, the result is 15. What is the number?

2. Eight times a number minus 7 equals 17. Find the number.

3. The sum of 25 and a number is six times that number. What is the number?

4. A rectangle has a length 8 cm longer than its width. Find the dimensions of the

rectangle if its perimeter is 80 cm.

5. The sum of 25 and a number is 100. Find the number.



pls​