a) `x + 123 = 249`
` x = 249 - 123`
` x = 126`
b) 459 – x = 211
` x = 459 - 211`
` x = 248`
c) `x +4/5=23/4 -7/6`
` x + 4/5 = 55/12`
`x = 55/12 - 4/5`
` x= 227/60`
`121 : x = 136 – 125`
` 121 : x = 11`
` x = 121 : 11`
` x = 11`
`a)x+123=249`
`x=249-123`
`x=126`
`b)459-x=211`
`x=459-211`
`x=248`
`c)x +4/5=23/4-7/6`
`x+4/5=(138-28)/24`
`x+4/5=110/24`
`x+4/5=55/12`
`x=55/12-4/5`
`x=227/60`
`121 : x = 136 – 125`
`121:x=111`
`x=121:11`
`x=11`
\(a,x+123=249\\ x=249-123\\ x=126\\ b,459-x=211\\ x=459-211\\ x=248\\ c,x+\dfrac{4}{5}=\dfrac{23}{4}-\dfrac{7}{6}\\ x+\dfrac{4}{5}=\dfrac{87}{20}\\ x=\dfrac{87}{20}-\dfrac{4}{5}=\dfrac{71}{20}\\ d,121:x=136-125\\ 121:x=11\\ x=121:11\\ x=11\)
a) x + 123 = 249
x=249-123
x=126
b) 459 – x = 211
x=459-211
x=248
c) x +4/5=23/4 -7/6
x+4/5=69/12-14/12
x+4/5=55/12
x=55/12-4/5
x=275/60 - 48/60
x=227/60
121 : x = 136 – 125
121 :x = 11
x=121:11
x=11
a)x + 123 = 249
x = 249 - 123
x = 126
b) 459 - x = 211
x = 459 - 211
x = 248
c) x + 4/5 = 23/4 - 7/6
x + 4/5 = 55/12
x = 55/12 - 4/5
x = 227/60
d) 121 : x = 136 - 125
121 : x = 11
x = 121 : 11
x = 11
a) x + 123 = 249
x = 249 - 123
x =126
b) 459 - x = 211
x = 459-123
x = 336
121: x = 136 -125
121:x =11
x=121:11
x=11