Question

tìm x bt

Answer 1

`a, 30 + (32 - x) = 10`

`62 - x = 10`

`x = 52`

`b, 3 - (17 - x) = 12`

`-14 +x = 12`

`x = 26`

`c, -30 + (25-x) = -1`

`-5 - x = -1`

`x = -4`.

Answer 2

\(a,32-x=10-30\\ 32-x=-20\\ x=32-\left(-20\right)\\ x=52\\ b,17-x=3-\left(-12\right)\\ 17-x=15\\ x=17-15\\ x=2\\ c,25-x=-1-\left(-30\right)\\ 25-x=29\\ x=25-29\\ x=-4\)