Помогите найдите корень уравнения 1/6 (х+9)=-1/3х 3/4 (х+8)=2х+1

Question

Помогите найдите корень уравнения
1/6 (х+9)=-1/3х
3/4 (х+8)=2х+1

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Answer 1

1/6*(х+9)=-1/3*х
1/6*х+1/6*9=-1/3*х
1/6*х+3/2=-1/3*х
1/6*х+1/3*х=-3/2
(1х+2х)/6=-3/2
3/6*х=-3/2
1/2*х=-3/2
х=-3/2:1/2
х=-3/2*2/1
х=-3

3/4*(х+8)=2х+1
3/4*х+3/4*8=2х+1
3/4*х+6=2х+1
3/4*х-2х=1-6
-5/4*х=-5
х=-5:(-5/4)
х=4

Comments

Спасибо