Question

me ajudem nessas questões de equação

a) 2k+9=k+20

b) 8m-3=3m+22

c) 4p+13=2p+25

d) 6z-20=4z+10

e) 5w+15=2w+30

f) 2u-9=u+4

Answer 1

a) 2k + 9 = k + 20

2k - k = 20 - 9

k = 11

b) 8m - 3 = 3m + 22

8m - 3m = 22 + 3

5m = 25

m = 25 / 5

m = 5

c) 4p + 13 = 2p + 15

4p - 2p = 15 - 13

2p = 2

p = 2 / 2

p = 1

d) 6z - 20 = 4z + 10

6z - 4z = 10 + 20

2z = 30

z = 30 / 2

z = 15

e) 5w + 15 = 2w + 30

5w - 2w = 30 - 15

3w = 15

w = 15 / 3

w = 3

f) 2u - 9 = u + 4

2u - u = 4 + 9

u = 13