Question

3x-7=2x+5 b) 7x+8= 4x - 10 c) 4x-15= -2x + 3 d) 2x-4-8 = 4x e) 3x = x+1+7 f) 360 +36x = 30x g) 2x+5-5x = -1 h) 5+6x=5x+2 i) x+2x-1-3= x j) -3x+10= 2x + 8 + 1 4- Resolva as equações: k) 5x-5+x=9+x 1) 7x-4x= -2x+8-3x m) -x-5+4x=-7x+6x+15 n) 3x - 2x = 3x + 2 o) 2-4x=32-18x + 12 p) 2x-1= −3+ x + 4 q) 3x-2-2x-3=0 r) 10-9x + 2x = 2 - 3x s) 4x-4-5x = -6 +90 t) 2-3x= -2x + 12 - 3x

com o calculo​

Answer 1

Resposta:

Explicação passo a passo:

a) 3x-7=2x+5

3x - 2x = 5 + 7

x = 12

b) 7x+8= 4x - 10

7x - 4x = -8 -10

3x = -18

x = -18/3

x = -6

c) 4x-15= -2x + 3

4x + 2x = 15 + 3

6x = 18

x = 18/6

x = 3

d) 2x-4-8 = 4x

2x - 4x = 4 + 8

-2x = 12

x = 12/-2

x = -6

e) 3x = x+1+7

3x - x = 8

2x = 8

x = 8/4

x = 2

f) 360 +36x = 30x

36x - 30x = - 360

6x = -360

x = -360/6

x = -60

g) 2x+5-5x = -1

2x - 5x = -1 - 5

-3x = - 6

x = -6/-3

x = 2

h) 5+6x=5x+2

6x - 5x = 2 - 5

x = -3

i) x+2x-1-3= x

x + 2x - x = 1 + 3

2x = 4

x = 4/2

x = 2

j) -3x+10= 2x + 8 + 1 4

-3x - 2x = 8  + 14 - 10

-5x = 12

x = -12/5

k) 5x-5+x=9+x

5x + x - x = 9 + 5

5x = 14

x = 14/5

1) 7x-4x= -2x+8-3x

7x -4x + 2x + 3x = 8

8x = 8

x = 8/8

x = 1

m) -x-5+4x=-7x+6x+15

-x + 4x + 7x - 6x = 15 + 5

4x = 20

x = 20/4

x = 5

n) 3x - 2x = 3x + 2

3x - 2x - 3x = 2

-2x = 2

x = 2/-2

x = -1

o) 2-4x=32-18x + 12

-4x + 18x = -2 + 32 + 12

14x = 42

x = 42/14

x = 3

p) 2x-1= −3+ x + 4

2x - x = 1 - 3 + 4

x = 2

q) 3x-2-2x-3=0

3x - 2x = 2 + 3

x = 5

r) 10-9x + 2x = 2 - 3x

-9x + 2x + 3x = 2 - 10

-4x = -8

x = -8/-4

x = 2

s) 4x-4-5x = -6 +90

4x - 5x = -6 + 90 + 4

-x = 88 .(-1)

x = 88

t) 2-3x= -2x + 12 - 3x

-3x + 2x + 3x = 12 - 2

2x = 10

x = 10/2

x = 5