Let's solve this step by step:
Equation 1: (х+11) = 355Subtract 11 from both sides:х = 344
Equation 2: 355(2х+27) = 405Expand:710х + 9635 = 405Subtract 9635 from both sides:710х = -9230Divide by 710:х = -13
Equation 3: (5х+2х)/2 = 252Combine like terms:7х/2 = 252Multiply by 2:7х = 504Divide by 7:х = 72
Therefore, the correct value of x should be 72.
Let's solve this step by step:
Equation 1: (х+11) = 355
Subtract 11 from both sides:
х = 344
Equation 2: 355(2х+27) = 405
Expand:
710х + 9635 = 405
Subtract 9635 from both sides:
710х = -9230
Divide by 710:
х = -13
Equation 3: (5х+2х)/2 = 252
Combine like terms:
7х/2 = 252
Multiply by 2:
7х = 504
Divide by 7:
х = 72
Therefore, the correct value of x should be 72.