3. 5x-2 4. -3x+15 5. -4x-28 6. -4x+ 12 7. 8x+ 40 To find the answer you need to multiply the number outside of the parentheses by each number/variable in the parentheses. For example, number 9 says 8(-x-6) you would have to "distribute" the 8 out the both the variable and the number. 8 multiplied by -x is -8x because a negative times a positive is a negative and 8 multiplied by -6 is -48. So there for your answer would be -8x-48
You have to make sure to also remember the multiplying rules: positive times a positive= positive positive times a negative= negative negative times a negative= positive ( i hope this helped! i don't do all of them bc there is quite a lot but yeah!)
