ao wants to check that the expression 3 (4x - 6) simplifies to 12x - 18. What is the value when 2 is substituted for x into both expressions?

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.