Can someone help me show work

The value of x = 12

Step-by-step explanation:

Given

As AC is the sum of AB and BC i.e.

substituting AC = x+51, AB = x+5, BC = 3x+10

AC = AB+BC

x+51 = x+5 + 3x+10

x+51 = 4x+15

switching sides

4x+15 = x+51

4x-x = 51-15

3x = 36

Divide both sides by 3

3x/3 = 36/3

x = 12

Therefore, the value of x = 12

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

step-by-step explanation: