Question

. 4x - 10 = 2x + 2
p. 5x + 6x - 16 = 3x + 2x - 4
q. 5(2x - 4) = 7(x + 1)
r. 4(x + 3) = 1
W. X[1 +2(3-1)] = 4x - 7
X. 20x - 4= 5x
4x = -8x + 36
me ajudem em alguma​

Answer 1

Resposta:

4x - 10 = 2x + 2

4x - 2x = 2 + 10

2x = 12

x = 12/2 = 6

5x + 6x - 16 = 3x + 2x - 4

5x + 6x - 3x - 2x = - 4 + 16

6x = 12

x =12/6 = 2

5 (2x - 4 ) = 7 (x+1)

10x - 20 = 7x +7

10x - 7x = 7+20

3x = 27

x = 27/3 = 9

4 (x+3) = 1

4x + 12 = 1

4x = 1 -12

4x = -11

x= -11/4

x [1+2 ( 3- 1)]  = 4x - 7

x [ 1 + 6 -2 ] = 4x - 7

1x +6x - 2x = 4x -7

1x + 6x - 2x -4x = -7

1x = -7

x = -7

20x - 4 = 5x

20x - 5x = 4

15x = 4

x = 4/15

4x= -8x + 36

4x + 8x = 36

12x = 36

x = 36/12

x=3

Explicação passo-a-passo: