Question

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Answer 1

Resposta:

m) 5x - 7/2 = 1/2 + x

5x-7/2 = 1/2+X

5x-2x= 1+7

3x= 8

x= 8/3

n) 2x - 1/3= x - x - 1/5

-2/3= x - 1/5

-10= 15x - 3x + 3

-10= 12x + 3

-12x= 3 + 10

-12x= 13

x= -13/12

o) x/4 + 3x - 2/2 = x - 3/2

x + 2 (3x - 2) = 2( x - 3)

x + 6x - 4= 2x - 6

7x - 4= 2x - 6

7x - 2x = -6 + 4

5x= -2x

x= -2/5

p) 2(x -1)/3 = 3x + 6/5

2x - 2/3 = 3x + 6/5

5(2x-2) = 3 (3x + 6)

10x - 10 = 9x + 18

10x - 9x = 18 + 10

x= 28

q) 3 ( x- 5)/6 + 2x/4= 7

3x - 15/6 + 2x/4= 7

2 (3x - 15) + 6x = 84

6x -30 +6x = 84

12x - 30= 84

12x= 84 + 30

12x= 114

x= 19/2

r) x/5 - 2 = 5 (x - 3)/4

x/5 - 2 = 5x - 15/4

4x - 40= 25x - 75

4x - 25x = -75 + 40

-21x= -35

x= 5/3

Explicação passo-a-passo:

de nada