Question

a) x + 7x – 2x = 96 + 2x b) x + 3 (x – 1) – 2 – 3 (x – 3) = 0 c) x - 3 x = 6 + 2 x d) 4 5x - 6 3x − 9 = 2 9 e) 2 (x + 3) + 5 = 3x – 15 f) 4x + 7 = x – 5 g) x + 2 (x + 1) = -x – 7 h) 2 (x – 3) – 4 (x + 1) = 20 + x se algm quiser responder eu do 5 estrela e obrigado

Answer 1

Resposta:

a)X+7X-2x=96+2x

X+7X-2X-2X=96

4X=96

X=96/4

X=24

B)x+3(x-1)-2-3(x-3)=0

x+(3x-3)-2-3x+9=0

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

x=5-9

x=-4

c)x-3x=6+2x

x-3x-2x=6

-4x=6

x=6/-4

x=1,5

d)45x-63x-9=29

45x-63x=9+29

-18x=38

x=38/-18

x=2,111...

e)2(x+3)+5=3x-15

2x+6+5=3x-15

2x-3x=-6-5-15

-1x=-26

x=-26/-1

x=26

f)4x+7=x-5

4x-x=-7-5

3x=-12

x=-12/3

x=-4

g)x+2(x+1)=-x-7

x+2x+2=-x-7

x+2x+x=-2-7

4x=-9

x=-9/4

x=-2,25

h)2(x-3)-4(x+1)=20=x

2x-6-4x-4=20+x

2x-4x-x=6+4+20

-3x=30

x=30/-3

x=-10

Explicação passo-a-passo: