Question

O CALCULO DE :
I) 3y - 1 =29
J) 2x =1
K) (x+1) + 4 = 9
L) 7x = x

Answer 1

i) 

3y - 1 = 29 

3y = 29 + 1

3y = 30

y = 30 / 3

y = 10

j)

2x = 1

x = 1 / 2

k)

(x + 1) + 4 = 9

x + 1 + 4 = 9

x + 5 = 9

x = 9 - 5 

x = 4

l)

7x = x 

7x - x = 0

6x = 0 

x = 0