Question

resolva as equação

a) 6×=2×+16
b) 2×-5=×+1
c) 2×+3=×+4
d)5×+7=×+4
e)4×-10=2×+2
f)4×7=8×-2
g)2×+1=4×-7
h)9×+9+3×=15
i)16×-1=19×+2
j)3×2=4×+9


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Answer 1

Olá

Letra a) 6x = 2x + 16

6x - 2x = 16

4x = 16

x = 16/4

x = 4

Letra b) 2x - 5 = x + 1

2x - x = 1 + 5

x = 6

Letra c) 2x + 3 = x + 4

2x - x = 4 - 3

x = 1

Letra d)5× + 7 = × + 4

5x - x = 4 - 7

4x = - 3

x = - 1,3

Letra e)4×-10=2×+2

4x - 2x = 2 + 10

2x = 12

x = 12/2

x = 6

Letra f)4×7=8×-2

4x - 8x = - 7 - 2

- 4x = -9 . (-1)

4x = 9

x = 9/4

x = 2,25

Letra g)2×+1=4×-7

2x - 4x = - 7 - 1

- 2x = -8 . (-1)

2x = 8

x = 8/2

x = 4

Letra h)9×+9+3×=15

9x + 3x = 15 - 9

12x = 6

x = 6/12

x = 0,5

Letra i)16×-1=19×+2

16x - 19x = 2 + 1

3x = 3

x = 3/3

x = 1

Letra j)3×2=4×+9

3x - 4x = 9 - 2

-x = 7 . (-1)

x = -7

Espero ter ajudado!