One of the greatest strengths of behavioral psychology is the ability to clearly observe and measure behaviors. Weaknesses of this approach include failing to address cognitive and biological processes that influence human actions.
Right away we see that expressions (a), (b), and (d) are equivalent, since addition is commutative: $2x + 8 = 8 + 2x$. We now only have to check (c) and (e). If $x=0$, (c) and (e) have the value 4, whereas (a), (b), and (d) have the value 8.So (c) and (e) are not equivalent to (a), (b), and (d).Moreover, if $x=1$, then (c) has the value 6 and (e) has the value 5, so those two expressions are not equivalent either.For (c), we can use the distributive property and decompose one of the numbers to write two equivalent expressions: $$ \begin{align} &2x+4 \\ &2(x+2) \\ &2(x+1+1) \end{align} $$.o (c) and (e) are not equivalent to (a), (b), and (d). Moreover, if $x=1$, then (c) has the value 6 and (e) has the value 5, so those two expressions are not equivalent either. For (c), we can use the distributive property and decompose one of the numbers to write two equivalent expressions:
let s solve for x in the 2nd equation first subtract 4y from both sides x 4y 24 x 4y 4y 24 4y x 24 4y sec replace 24 4y with the x variable in the 1st equation 24 4y 2y 6 distribute the negative sign with the terms in parenthesiset x+ 2y 6 1 6x 4y 24 2 then multiple equation 1 with 2 so the equation will be like this 2x 4y 12 3 6x 4y 24 2 then 3 2 8x 12 x 1 5 then put x 1 5 into equation 2 6x 4y 24 6 1 5 4y 24 9 4y 24 4y 15 y 3 75 as a conclusion