What are the like terms in the algebraic expression?

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?