Question

resolva as equações: ( se puder explicar tb)​

Answer 1

a) 5p = 10p

5p - 10p = 0

-5p = 0

p = 0/-5

p = 0

b) 3z = 15z

3z - 15z = 0

-12z = 0

z = 0/-12

z = 0

c) 4x = 16x

4x - 16x = 0

-12x = 0

x = 0/-12

x = 0

d) 5k - 3 = 17k

5k -17k = 3

-12k = 3

k = 3/-12

k = -1/4

e) 3q - 2 = 16q

3q - 16q = 2

-13q = 2

q = 2/-13

q = -2/13

f) 2j + 3 = 9j

2j - 9j = -3

-7j = -3

j = -3/-7

j = 3/7

g) 6n + 4 = 22n

6n - 22n = -4

-16n = -4

n = -4/-16

n = 1/4

h) 3r - 6 = -6r + 21r

3r + 6r - 21 r = 6

-12r = 6

r = 6/-12

r = -1/2

i) 5y + 8 = 3y + 6y

5y -3y -6y = -8

-4y = -8

y = -8/-4

y = 2

j) 7m + 8 = 15m

7m - 15m = -8

-8m = -8

m = -8/-8

m = 1

k) 6x + 13 = -5x + 8x

6x - 8x + 5x = -13

3x = -13

x = -13/3

L) 2,9 b - 5,1 = - 0,1 b + 0,9

2,9 b + 0,1 b = 0,9 + 5,1

3 b = 6

b = 6/3

b = 2