Part a: solve the equation 7x + 3x - 18 = 6(x+3), and show your work.

part b: use this list of properties to justify each step of your math work. justifications maybe use more than once if needed

21

step-by-step explanation:

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

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.