Question

calcule:

a) (-8) - (-7) -(+5)

b) (+7) - (-15) - (+10) - (-8)





me ajudem nessa kk ​

Answer 1

$\LARGE\mathscr{{( - 8) - ( - 7) - ( + 5)}} \\ \\ \LARGE\mathscr{{ - 8 - ( - 7) - 5}} \\ \\ \LARGE\mathscr{{ - 8 + 7 - 5}} \\ \\ \LARGE\mathscr{{ - 13 + 7}} \\ \\ \LARGE\mathscr{{ - 6}}$

$\LARGE\mathscr{{7 - ( - 15) - 10 - ( - 8)}} \\ \\ \LARGE\mathscr{{7 + 15 - 10 - ( - 8)}} \\ \\ \LARGE\mathscr{{7 + 15 - 10 + 8}} \\ \\ \LARGE\mathscr{{30 - 10}} \\ \\ \LARGE\mathscr{20{}}$

$\LARGE\bf{\pink{E}\purple{s}\blue{p}\green{e}\orange{r}\red{o}~\pink{t}\purple{e}\green{r}~\orange{a}\red{j}\pink{u}\purple{d}\blue{a}\green{d}\orange{o}\red{!}}$

$\LARGE\mathscr{{Attard}}$