Question

a) x + 5 = 10 f) 5x – 9 = 3x + 4 k) 12y + 15 + y – 3 6y – 9 = y b) 2x + 4 = 6 g) 10 – 4m = 7 – 6m l) 5a + (4 – a) = 9 – (a – 6) c) 1 – a = 12 h) 5z – 3.2 = 8z + 2.8 m) 8y = 2 ( 3y – 5) d) 1 - 4a=-18 i) 7p – 3p + 15 = 22 – 4p – 7 n) – (4t – 6 + 5x) + (9 – 5t + 3 – 2t) = 7t – ( 1 – 6t) e) -2 – 5k = 0 j) 72x – 3 – 24x = 48x – 3 – 12x

Answer 1

Dame coronita y corazón❤

a) x+5=10

x=10-5

x=5

b) 2x+4=6

2x=6-4

2x=2

x=2/2

x=1

c) 1-a=12

1-12=a

-11=a

d)1-4a= -18

4a= -18-1

4a= -19

a= -19/-4

e)-2-5k=0

-5k=0+2

-5k=2

k=2/-5

f)5x-9=3x+4

5x-3x=4+9

2x=13

x=13-2

x=11

g)10-4m=7-6m

10-7= -6m+4m

3=-2m

3+2= m

5=m

h)5z-3,2=8z+2,8

5z-8z=2,8+3,2

-3z= 6

z=6/3

z=2

i)7p-3p+15=22-4p-7

7p-3p+4p=22-7-15

8p=0

p=0/8

j)72x-3-24x=48x-3-12x

72x-24x-48x+12x= -3+3

12x=0

x=0/12

k)12y+15+y-3+6y-9=y

12y+y+6y-y= -15+3+9

-18y= -3

y= -3/18

l)5a+(4–a)=9–(a–6)

(está resuelta en la foto añadida)

m)8y =2(3y-5)

8y=6y-10

8y-6y=10

2y=10

y=10/-2

n)(4t-6+5t)+(9-5t+-2t)=7t-(1-6t)

4t+5t-5t-2t-7t-6t=6-9-1

-11t= -4

t= -4/11