`c) ( a + 8054 ) : 9 = 1230`
`=> a + 8054=1230 xx 9`
`=> a + 8054=11070`
`=>a=11070- 8054`
`=>a=3016`
`------------`
`a xx 4 + 1986 = 22850 `
`=> a xx 4 =22850 - 1986 `
`=> a xx 4 =20864`
`=>a=20864:4`
`=>a=5216`
c, a + 8054 = 1230 x 9
a + 8054 = 11070
a = 11070 - 8054
a = 3016
d, a x 4 = 22580 - 1968
a x 4 = 20612
a = 20612 : 4
a = 5153
c) (a + 8054) : 9 = 1230
a + 8054 = 1230 x 9
a + 8054 = 11070
a = 11070 - 8054
a = 3016
b) a x 4 + 1986 = 22850
a x 4 = 22850 - 1986
a x 4 = 20864
a = 20864 : 4
a = 5216
c) (a+ 8054) : 9 = 1230
(a+8054) = 1230 x 9
a + 8054 = 11070
a = 11070 - 8054
a = 3016
d) a x 4 + 1986 = 22850
( a x 4) = 22850-1986
a x 4 = 20864
a = 20864 :4
a = 5216
\(c,\left(a+8054\right):9=1230\\ a+8054=1230.9\\ a+8054=11070\\ a=11070-8054\\ a=3016\\ d,a.4+1986=22850\\ a.4=22850-1986\\ a.4=20864\\ a=20864:4\\ a=5216\)
c) ( a + 8054 ) : 9 = 1230
a + 8054 = 1230 x 9
a + 8054 = 11070
a = 11070 - 8054
a = 3016
d) a x 4 + 1986 = 22850
a x 4 = 22850 - 1986
a x 4 =20864
a = 20864 : 4
a = 5216
c,(a+8054):9=1230
(a+8054)=1230x9
a+8054=11070
a=11070-9054
a=2016
Vậy a=2016
d,ax4+1986=22850
ax4=22850+1986
ax4=24836
a=24836:4
a=6209
Vậy a=6209
c) (a + 8054) : 9 = 1230
a + 8054 = 1230 x 9
a + 8054 = 11070
a = 11070 - 8054
a = 3016
b) a x 4 + 1986 = 22850
a x 4 = 22850 - 1986
a x 4 = 20864
a = 20864 : 4
a = 5216
