These are the last three quetions on my test and i really need the answers or help i have been trying for so long and don't understand them please help me!!!!!!!

Question

1.) 5(2x+3)

2.) -3c-8+7c+10

3.) -5(x-1)+8x

Answer 1

The parentheses mean multiply.

1.) 5(2x+3) = 10x + 15

Combine like terms.

2.) -3c-8+7c+10 = 4c + 2

If you try to do number 3, we'll be glad to check your answer.

Answer 2

3.-5(x-1)+8x= 3x+5