Question

h) 4 + 2x = 3x - 19
1) 3( a - 4) = 12
j) 6(x + 1) = 5
k) 5(y + 3) = y + 1
1) 12(t-3) = 6(t +1) – 5​

Answer 1

h) x=23
l) a=8
j)x= -1/6
k)y= -7/2
L)t=37/6

Answer 2

h) 4 + 2x = 3x - 19

2x - 3x = - 19 - 4

-x = 23 Altere os sinais

x = 23

1) 3( a - 4) = 12

a - 4 = 4

a = 4 + 4

a = 8

j) 6(x + 1) = 5

6x + 6 = 5

6x = 5 - 6

6x = - 1

x = - 1/6

k) 5(y + 3) = y + 1

5y + 15 = y + 1

5y - y = 1 - 15

4y = -14

y = -7/2

1) 12(t-3) = 6(t +1) – 5

12t - 36 = 6t + 6 - 5

12t - 36 = 6t + 1

12t - 6t = 1 + 36

6t = 36

t = 37/6