Question

1. 14+p+37+p=p+p+p+p+p
2. [(624+123:3-a):6]x3+254=554
3. {[(v+4)x6]+6}:4=15
4. {[(2+d)x2+2}x2+2=54
5. (S+SxS):8=S

Answer 1

1. 14+p+37+p=p+p+p+p+p51+2p=5p
5p-2p=51
3p=51
p=51:3
p=17

2. [(624+123:3-a):6]x3+254=554

 [(624+41-a):6]x3=554 -254

[(624+41-a):6]x3=300

(624+41-a):6=300:3

(624+41-a):6=100

624+41-a=100*6

665-a=600

a=665-600

a=65


3. {[(v+4)x6]+6}:4=15


[(v+4)x6]+6=15*4


[(v+4)x6]+6=60

(v+4)x6=60-6

(v+4)x6=54

v+4=54:6

v+4=9

v=9-5

v=5


4. {[(2+d)x2+2]}x2+2=54

{[(2+d)x2+2]}x2=54-2


{[(2+d)x2+2]}x2=52


[(2+d)x2+2]=52:2

(2+d)x2+2=26

(2+d)x2=26-2

(2+d)x2=24

2+d=24:2

2+d=12

d=12-2

d=10



5. (S+SxS):8=S

S+SxS=8S
8S-S²=07S-S²=0
S(8-S)=0
s=0 si s=8