Question

8(х-14)=56
2)(46-х)•19=418
3)9(143-13х)=234
4)17(5х-16)=238
помогите решить

Answer 1

1)8x-112=56
8x=112+56
8x=168
x=21

2) (46-x)*19=418
874-19=418
-19x=-418-874
-19x=-456
x=24

3) 9(143 - 13x ) = 234
143-13x=26
-13x=26-143
-13x=117
x=9

4) 17(5x - 16) = 238
5x-16=14
5x=16+14
5x=30
x=6

Answer 2

Приветствую Вас!

1)
8(x+14)=56
$frac{8(x-14)}{8} = frac{56}{8}$
$x-14= frac{56}{8}$
$x-14=7$
$x=7+14$
$x=21$

2) 
(46-x)*19=418
$frac{19(46-x)}{19} = frac{418}{19}$
$46-x= frac{418}{19}$
$46-x=22$
$-x=-24$
$x=24$

3)
9(143-13х)=234
$frac{9(143-13x)}{9} = frac{234}{9}$
$113-13x= frac{234}{9}$
$143-13x=26$
$-13x=-117$
$x=9$

4)
17(5х-16)=238
$frac{17(5x-16)}{17} = frac{238}{17}$
$5x-16= frac{238}{17}$
$5x-16=14$
$5x=30$
$x=6$