Resolva as equações
a) 10-2x=3x
b)x-3=6+4x
c)(7x-8).2=6.(3x-4)
d)16x-6-7x=15+2x
Soluções para a tarefa
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a)10 - 2x = 3x
10 = 5x
x = 2
b)x-3 = 6+4x
-3-6 = 4x-x
- 9 = 3x
x = -3
c) (7x - 8) . 2 = 6 . (3x - 4)
14x - 16 = 18x - 24
18x - 14x = -24 + 16
4x = -8
x = -2
d) 16x-6-7x = 15 +2x
16x-7x-2x = 15+6
7x = 21
x = 3
10 = 5x
x = 2
b)x-3 = 6+4x
-3-6 = 4x-x
- 9 = 3x
x = -3
c) (7x - 8) . 2 = 6 . (3x - 4)
14x - 16 = 18x - 24
18x - 14x = -24 + 16
4x = -8
x = -2
d) 16x-6-7x = 15 +2x
16x-7x-2x = 15+6
7x = 21
x = 3
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