Question

What is the value of 4c+6c-10c when c=5?

Answer 1

4(5)+6(5)-10(5)=0
(5) basically means times 5. So 4 times 5 is 20. 6 times 5 is 30. 20 plus 30 is 50. 10 times 5 is also 50. 50-50 is 0.
Good Luck, hope this helps!

Answer 2

4(5)+6(5)-10(5)=?
To make it easier to solve factor it:
5(4+6-10)
5(10-10)
5(0)
5x0=0
Solution: 0