Question

porfa doy varios puntos? 18

Answer 1

1. 2(X-1)-(X+1)=1

2X-2-X-1=1

X-3=1

X=4

2. 9-2(3Y-3)=Y

9-6Y+6=Y

15-7Y=0

-7Y=-15

Y=15/7

3. 6(3T-4)-4T=4(T-2)

18T-24-4T=4T-8

18T-4T-4T=-8+24

10T=16

T=10/16

T=8/5

4. 6(2-N)+4=1-(N-3)

12-6N+4=1-N+3

16-6N-1+N-3=0

-5N=-12

N=12/5

5. 3(Y-2)+1=2(Y-3)+(Y+2)

3Y-6+1=2Y-6+Y+2

3Y-2Y-Y=2-1

0=1