First, let's substitute 2 for x in the expression, 3(4x-6)
3(4(2)-6) = 3(8-6) = 3(2) = 6
- The operations within the parenthesis should be done first.
- Multiplication is next. 4*2 = 8
- Then subtraction. 8-6 = 2
- Finally, multiply once again. 3*2 =6
Next, let's substitute 2 for x in the expression, 12x-18
12(2)-18 = 24-18 = 6
- Multiplication comes first in the order of operations. 12*2 = 24
- Then, subtraction. 24-18 = 6
The value of both expressions when substituting x for 2 is 6.
