First, you write the equation in its simplest form:
5x + 2 = 3x
Then, you subtract 3x from both sides of the equation, so that the right side has no unknowns left:
2x + 2 = 0
Then, you subtract 2 from both sides of the equation, so that the left side has only a multiple of x left:
2x = -2
Finally, you divide both sides by 2, so that the left side is simply x:
x = -1
23
5x+y=-7 3x+y=15 8=D
172=x
3x + 4 = 5x - 6 -3x -3x 4 = 2x - 6 +6 +6 10 = 2x 5 = x
3x+5=4-2x+6 5x=4-1 5x=3 x=3/5
23
x = -8
3
5x+2 = 3x-6 5x-3x = -6-2 2x = -8 x = -4
3x + 2x = 5x. 5x= (-4) X = (-4)/5 x= -0.8
5x+y=-7 3x+y=15 8=D
3x+4 = 5x-6 3x-5x = -6-4 -2x = -10 x = 5
172=x
3x-4=5x+6 gives: 2x=-10 which gives x=-5
5x+8x+3x-2x = 14x
3x + 4 = 5x - 6 -3x -3x 4 = 2x - 6 +6 +6 10 = 2x 5 = x
3x+5=4-2x+6 5x=4-1 5x=3 x=3/5