Question

Respuestas por favor

P + (3 + P) x 2 = 27


20 = 3X + 2 x (3 + 2X)


3 + 5r + 4 x (1 – r) = 1 + 3 r


3m + (3 – m) x 2 = m – 6


5n – 2n + 4 = 3 x (n + 1)


5= 2r + 2 x (6 – r)

Answer 1

P+6+2P=27

3P=27-6

3P=21

P=7

20=3X+6+4X

20-6=7X

14=7X

2=X

3+5r+4-4r=1+3r

3+4-1=3r+4r-5r

6=2r

3=r

3m+6-2m=m-6

3m-2m-m=-6-6

0m=-12

sin solución

5=2r+12-2r

5-12=0r

-7=0r

sin solución