Answer for 10 points help

-2x

Step-by-step explanation:

x - 3x is = -2x (i got this from the left side of the equation)

and you need both sides of the equation to be equal to each other for it to be infinite number of solutions. since -2x is the same as x - 3x and both sides of the equations have +15, then you need to find the value that would make the equations the same. and -2x is that

the camry sales+accord sale=828,000. to make it so the two numbers are 18 thousand apart and still equal 828,000, you first need to find out what half of 828,000 is. 828,000/2=414,000. for the two numbers to equal 828,000, you have to add the same amount as you subtract from the middle. in this case, the number is 9,000 because it's half of 18,000. to equal 828,000, you have to add 9,000 to 414,000 for the camry and subtract 9,000 from 414,000 for the accord. 414,000+9,000=423,000.

414,000-9,000=405,000.

423,000+405,000=828,000.

423,000-405,000=18,

hope it