Question

1) -3x+10=2x+8+1
2) 5x-5+x=9+x


3) 7x-4-x=-7x+8-3x

Answer 1

1) -3x + 10 = 2x + 8 + 1
-3x + 10 = 2x + 9
10 - 9 = 2x + 3x
1 = 5x
x = 1/5 ---------> x = 0,2
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2) 5x + 9 + x = 9 + x
6x + 9 = 9 + x
6x - x = 9 -9
5x = 0
x = 0/5
x= 0
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3) 7x - 4 - x = -7x + 8 -3x
6x - 4 = -10x + 8
6x + 10x = 8 + 4
16x = 12
x= 12/16  -----> x = 0,75