x+26-7=47+36

x+19=83

x=83-19

x=64

k mk nhé mk nhanh nhất

x + 26 - 7 = 47 + 36

x + 19 = 83

x = 83 - 19

x = 64

x + 26 - 7 = 47 + 36

x + 26 - 7 = 83

x + 26 = 83 + 7

x + 26 = 90

x = 90 - 26

x = 64

Mk nhanh nhất đó

Đúng 100%

Tk mk mk tk lại

Cảm ơn bạn nhiều

Thank you very much

( ^ _ ^ )

a,21.35-3.26.7

=735-546

=189

b,77-11.(30+7)

=77-407

=-330

c,85.(36-27)-35.(86-27)

=85.9-35.59

=765-2065

=1300

d,47.(43-15)-47.(45+15)

=47.28-47.60

=47.(28-60)

=47.(-32)=-1504

a,=\(237.\left(-26\right)+26.137\)

=\(-6162\)\(+3572\)

=\(-2590\)

b,=\(-136+47+36.47\)

=\(47.\left(-136-36\right)\)

=\(47.-100\)

=\(-4700\)

a) 237 . (-26) + 26 . 137

= -237 . 26 + 26 . 137

= 26 . (-237 + 137)

= 26 . -100

= -2600

b) 136 . (-47) + 36 . 47

= -136 . 47 + 36 . 47

= 47 . (-136 + 36)

= 47 . -100

= -4700

c) -48 . 72 + 36 . (-304)

= -48 . 72 + 36 . 2 . (-152)

= -48 . 72 + 72 . (-152)

= 72 . (-48 + -152)

= 72 . -200

= -14400

\(\frac{21}{47}+\frac{9}{45}+\frac{26}{47}+\frac{36}{45}-1,5\)

\(=\left(\frac{21}{47}+\frac{26}{47}\right)+\left(\frac{9}{45}+\frac{36}{45}\right)-1,5\)

\(=\frac{47}{47}+\frac{45}{45}\)

\(=1+1\)

=2

x = 4

\(x+\left|-3\right|=-\left|-7\right|\)

\(x+3=-7\)

\(x=-7-3\)

\(x=-10\)

\(x-\dfrac{1}{4}=\dfrac{-21}{10}\)

\(x=\dfrac{-21}{10}+\dfrac{1}{4}\)

\(x=\dfrac{-42}{20}+\dfrac{5}{20}=\dfrac{-37}{20}\)

x = 22 x 7/11

x = 14

3/2 x X = 11/2 - 7/4

3/2 x X = 22/7

X = 22/7 : 3/2

X = 44/21

a) (26-6)*(-4)+31*(-7-13)

=-80+-620

=-700

hacker 2k6

\(X:\dfrac{3}{9}=\dfrac{7}{8}\)

\(X=\dfrac{7}{8}\times\dfrac{3}{9}\)

\(X=\dfrac{21}{72}\)

\(\left(X-21\times13\right):11=30\)

\(X-273=330\)

\(X=603\)

`x:3/9=7/8`

`x=7/8xx3/9`

`x=7/24`

`-------------`

`(x-21xx13):11=30`

`(x-273):11=30`

`x-273=30xx11`

`x-273=330`

`x=330-273`

`x=57`