Решите плиз -(1.8x+2.3)+(3.6x+2.5)=1.6x И (3.1x+3.1)-(1.8x+1.8)=1.6x+1.6 Заранее спс

Question

Решите плиз
-(1.8x+2.3)+(3.6x+2.5)=1.6x


И
(3.1x+3.1)-(1.8x+1.8)=1.6x+1.6
Заранее спс

Answer 1

-(1.8x+2.3)+(3.6x+2.5)=1.6x
-1.8x-2.3+3.6x+2.5=1.6x
3.6x-1.6x-1.8x=2.3-2.5
0,2х=-0,2
х=-0.1

(3.1x+3.1)-(1.8x+1.8)=1.6x+1.6
3.1x+3.1-1.8x-1.8=1.6x+1.6
3.1x-1,8х-1.6x=1,6-3,1+1,8
-0,3х=0,3
х=-0.1

Comments

Спасибо

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не за что