Question

A wire is 7x – 3 metres long. A length of 3x + 4 metres is cut out of it for use. How much wire is left?
​

Answer 1

Answer:

4x + 1 metre

Step-by-step explanation:

7x - 3metres - 3x + 4metres

Collect like terms

7x - 3x - 3metres + 4metres

4x+ 1 metre

Answer 2

Answer:

Total Length = 7x-3

Length cut out = 3x + 4

Wire left = 7x-3 -(3x+4)

              =7x-3-3x-4

              =7x-3x-3-4

              =4x-7(ANSWER)