4(x + 1) + 8 = 24
Simplify.
4x + 4 + 8 = 24
Add like terms.
4x + 12 = 24
Subtract 12 from both sides.
4x = 24 - 12
Simplify.
4x = 12
Divide both sides by 4.
x = 12/4
x = 3
And, if you meant 3.75 - 2.53, then that equals 1.22.
Remember, always line up the decimal points! :)
~Hope I helped!~