2x - 4 = -2 + 4x
what is ×

x = -1

Step-by-step explanation:

-1 = x

Step-by-step explanation:

2x - 4 = -2 + 4x

add 2 to both sides

2x - 4 + 2 = -2 + 2 + 4x

2x - 2 = 4x

subtract 2x from both sides

2x - 2x - 2 = 4x - 2x

-2 = 2x

divide both sides by 2

-2/2 = 2x/2

-1 = x

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.

113.42

i hope that is right.

step-by-step explanation: