Neither of those terms defines a line. To define a line, you would need to describe a relationship between two variables normally x and y. -2x and -3x are only single terms with a single variable, and so do not fit the bill.
If however you are referring to the lines:
y = -2x
and:
y = -3x
Then the answer is that the latter of the two is more steep. With a slope of -3, the height changes half again as quickly as the other line with a slope of only -2.
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
2x + 3x = 5x
2x-3x = -1
No. 3x plus 2x = 5x. 3x multiplied by 2x = 6x²
If you mean: 3x-(2x+4x-6) then 3x-2x-4x+6 simplifies to 6-3x
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
The second equation has the steeper slope.
2x + 3x = 5x.
2x - 3x = -x
2x + 3x = 5x
2x-3x = -1
3x + 2x - 8x + 2x = -x
No. 3x plus 2x = 5x. 3x multiplied by 2x = 6x²
LMN = LM + MN = 3x + (2x +2) = 5x + 2
2y= 3x+6
If you mean: 3x-(2x+4x-6) then 3x-2x-4x+6 simplifies to 6-3x
2x+3x = 5x