Question

rozwiaz rownania -(2x-1)=4

2(x+1)=x

2t-(3t+1)=6

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

3(y+6)-y=2(y+9)

(x-7)-2(3x+5)=5

wielkie dzieki

Answer 1

a)-2x+1=4->-2x=3->x=-3/2

b)2x+2=x->2=-x->x=-2

c)2t-3t-1=6->-t=7->t=7

d)-4-x=6-2x->-x=10-2x->x=10

e)3y+18-y=2y+18->2y+18=2y+18->0=0 równanie tożsamościowe

f) x-7-6x-10=5->-5x=22->x=-22/5

Answer 2

a)       -(2x-1)=4

 -2x+1=4

-2x=3

x=-2/3

 

b)

2(x+1)=x

2x+2=x

-x=2

x=-2

 

c)

2t-(3t+1)=6

2t-3t-1=6

-t=7

t=-7

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

-4-x=6-2x

x=10

d)

3(y+6)-y=2(y+9)

3y+18-y=2y+18

y=0

e)(x-7)-2(3x+5)=5

x-7 -6x-10=5

-5x=22

x=-22/5