Question

PB_WINT_FSA_DIAG_MA_GR7A_682 Given the following expression 3 +7 Which of the following is equivalent to this expression? 1- ооо - 8 12 1 -1 +6 12 5 O 1 +6 12 -I - 8

Answer 1

`((2)/(3)x-1)+((3)/(4)x+7)`

we can remove the parenthesis

`(2)/(3)x-1+(3)/(4)x+7`

group the expression with X and the numbers, then operate

`\begin{gathered} ((2)/(3)+(3)/(4))x+(-1+7) \\ \\ (((4*2)+(3*3))/(3*4))x+6 \\ \\ ((8+9)/(12))x+6 \\ \\ (17)/(12)x+6 \end{gathered}`

we can represent the fraction as a mixed number because the numerato is greatr than the denominator

`(17)/(12)\longrightarrow1(5)/(12)`

so the final expression is

`1(5)/(12)x+6`

then the right option is the third