12+(x+27)=83

x = 44

Steps:

• 12 + (x + 27) = 83 → x + 12 + 27 = 83 → x + 39 = 83
• Subtract 39: x = 83 − 39 = 44
• Check: 12 + (44 + 27) = 12 + 71 = 83

So x = 44.