5x+7=3x-21
-7= -7
5x=3x-14
-3x=-3x
2x=-14
2x/2x=2x/-14
x=-7
The Answer Is -7
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10x+7 = 5x+32 10x-5x = 32-7 5x = 25 x = 5
If: 10x+7 = 5x+22 Then: 10x-5x = 22-7 And: 5x = 15 So: x = 3
DIE
3x - 7 = 5x + 133x - 5x = 13 + 7-2x = 20x = -10x=-3
5x + 7 = 4subtract 7 from both sides5x = -3divide both sides by 5x = -3/5