Question

resolva as equações a )4×-6=22 b)9-×=2× c)8+4×=6×-4 d)3×+1=×+9 e)4×-11=7-2× f)3×+1=5+×

Answer 1

a) 4x - 6 = 22

4x = 22 + 6
4x = 28
x = 28/4
x = 7
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b) 9 - x = 2x

-x - 2x = -9
-3x = -9
x = -9/-3
x = 3
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c) 8 + 4x = 6x - 4

4x - 6x = -4 - 8
-2x = -12
x = -12/-2
x = 6
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d) 3x + 1 = x + 9

3x - x = 9 - 1
2x = 8
x = 8/2
x = 4
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e) 4x - 11 = 7 - 2x

4x + 2x = 7 + 11
6x = 18
x = 18/6
x = 3
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f) 3x + 1 = 5 + x

3x - x = 5 - 1
2x = 4
x = 4/2
x = 2