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3x - 5 = 4 + 2x
3x - 2x = 4 + 5
x = 9
b)
-5x + 10 = -2x - 8
-5x + 2x = -8 - 10
-3x = - 18 /:(-3)
x = 6
c)
-5x - 17 = -9x + 3
-5x + 9x = 3 + 17
4x = 20 /:4
x = 5
d)
7x + 14 = 5x - 22
7x - 5x = -22 - 14
2x = - 36 / :2
x = - 18
e)
2x - 4 + 5x = x + 2
2x + 5x - x = 2 + 4
6x = 6 /:6
x = 1
3x-2x=4+5
x=9
b) -5x+10=-2x-8
-5x+2x=-8-10
-3x=-18 /:(-3)
x=5
c)-5x-17=-9x+3
-5x+9x=3+17
4x=20 /:4
x=5
d) 7x+14=5x-22
7x-5x=-22-14
12x=-36 /:12
x=-3
e) 2x-4+5x=x+2
7x-x=2+4
6x=6 /:6
x=6