`3^2 ( x + 1 ) − 3 = 2^3 + ( 7^2 .2 ) : 14`
`=> 9(x+1) - 3 = 8 + ( 49 .2 ) : 14`
`=> 9(x+1) -3 = 8+ 98 : 14`
`=> 9(x+1) - 3 = 8 + 7`
`=> 9(x+1) - 3 = 15`
`=> 9(x+1) = 15 + 3`
`=> 9(x+1) = 18`
`=> x + 1 = 18 : 9`
`=> x + 1 = 2`
`=> x = 2-1`
`=> x=1`
=>9(x+1)-3=8+7
=>9(x+1)=18
=>x+1=2
=>x=1