Question

a)2(x + 2) = 5
b)19x=0
c)-5y+y=9

Answer 1

a) 2x+4=5

2x=5-4

2x=1

x=1÷2

x=0,5

b) 19x=0

x=0÷19

x=0

c) -6y=9

y=9÷6

y=1,5

Answer 2

Oi...

a)

2(x + 2) = 5

2x + 4 = 5

2x = 5 - 4

2x = 1

x = 1/2

b)

19x = 0

x = 0/19

x = 0

c)

- 5y + y = 9

- 4y = 9 ⇒( - 1)

4y = - 9

y = - 9/4

Bons estudos.