`100-3.(x-3):2 = 7^2 - 1^10`
`100-3.(x-3):2 = 49 - 1`
`100-3.(x-3):2=48`
`3.(x-3):2 = 100-48`
`3.(x-3):2 = 52`
`(x-3):2 =52:3`
`(x-3):2 = 52/3`
`x-3=52/3 xx2`
`x-3 = 104/3`
`x=104/3 +3`
`x = 113/3`
=>100-3/2(x-3)=49-1=48
=>3/2(x-3)=52
=>x-3=52:3/2=52*2/3=104/3
=>x=113/3