3(×+9)-(×-6)

Rewriting the expression without the brackets:

3x + 27 - x + 6

Combining like terms:

2x + 33

2(×-1)+5(×+9)

Expanding the expression:

2x - 2 + 5x + 45

Combining like terms:

7x + 43

To simplify the expression 3(×+9)-(×-6), you can follow these steps:

Step 1: Distribute the 3 to both terms inside the parentheses:
= 3× + 3(9) - (× - 6)
= 3× + 27 - (× - 6)

Step 2: Remove the parentheses:
= 3× + 27 - × + 6

Step 3: Combine like terms:
= 3× - × + 27 + 6
= 2× + 33

Therefore, the simplified expression is 2× + 33.