15−2x−8−3x=−x−12+4x+43
now combine all the like terms on each side.
Add -2x and -3x
subtract 15 and -8....you subtract because the sign are different
now do the same for the other side
−5x+7=−x−12+4x+43
−5x+7=3x+31
bring the x value from the right side to the left side.
−5x+7−3x=31
combine like terms on left side
−8x+7=31
now move +7 to the right side which become..
−8x=−7+31
−8x=24
we will need to single out X by dividing

answer: X= -3
Answer:
Area of square is 625 cm².
Explanation:
Side (length) = 25 cm
As we know, all the sides of the square are equal.
Further,
Area of the square = (side) ²
Area = ( 25 )²
Area = 625 cm²
Therefore, area of the square is 625 cm².
So the first thing you want to do is see how much quarts are in a gallon. (4.) Then you figure it would need 2 eight packs to get 4 gallons, as there are 8 quarts in each. 2 eight packs would cost 32 dollars verses 24 dollars for a 4 gallon jug (the same amount as 2 eight pack quarts.) So the 4 gallon jug is cheaper.
The answer to this is 8%.