Question

resolva essas equações:

A)- 2×+4=6+8×

B)- -10-8×=-6×+4

C)- 9×+1=5×-4

D)- -9+6×=2×+3

E)- 10×-1=8+2×
​

Answer 1

A)

- 2x + 4= 6 + 8x

- 2x - 8x= 6 - 4

- 10x= 2

x= 2/ -10

B)

- 10 - 8x= - 6x + 4

- 8x + 6x= 4 + 10

- 2x= 14

x= 14/ -2

x= -7

C)

- 9x + 1= 5x + 4

- 9x - 5x= 4 - 1

- 14x= 3

x= 3/ -14

D)

- 9 + 6x= 2x + 3

6x - 2x= 3 - 6

4x= - 3

x= -3/ 4

E)

10x - 1= 8 + 2x

10x - 2x= 8 + 1

8x= 9

x= 9/8

Answer 2

Explicação passo-a-passo:

$a) - 2x + 4 = 6 + 8x \\ - 2x - 8x = 6 - 4 \\ - 10 = 2 \\ x = 2 \div ( - 10) \\ x = 0,2$

$b) - 10 - 8x = - 6x + 4 \\ - 8x + 6x = 4 + 10 \\ - 2x = 14 \\ x = 14 \div ( - 2) \\ x = - 7$

$c) - 9x + 1 = 5x - 4 \\ - 9x - 5x = - 4 - 1 \\ - 14x = - 5 \\ x = - 5 \div ( - 14)$

$d) - 9 + 6x = 2x + 3 \\ 6x - 2x = 3 + 9 \\ 4x = 12 \\ x = 12 \div 4 \\ x = 3$

$e) - 10x - 1 = 8 + 2x \\ - 10x - 2x = 8 + 1 \\ - 12x = 9 \\ x = 9 \div ( - 12) \\ x = - 0 ,75$

• Espero ter ajudado ❤