Question

a)72+5x=12
b) 4y-y-2=34
c)2x+2+3x-4=1
d)y-y+8y-3=11+y​

Answer 1

Resposta:

a) - 12

b) 12

c) 3/5

d) 2

Explicação passo-a-passo:

a)

72 + 5x = 12

5x = 12 - 72

5x = - 60

x = - 12

b)

4y - y - 2 = 34

3y = 34 + 2

y = 12

c)

2x + 2 + 3x - 4 = 1

5x = 1 + 4 - 2

x = 3/5

d)

y - y + 8y - 3 = 11 + y

8y - y = 11 + 3

7y = 14

y = 2

Answer 2

Olá...

Resolução:

a)

72 + 5x = 12

5x = 12 - 72

5x = - 60

x = - 60/5

x = - 12

b)

4y - y - 2 = 34

3y - 2 = 34

3y = 34 + 2

3y = 36

y = 36/3

y = 12

c)

2x + 2 + 3x - 4 = 1

5x - 2 = 1

5x = 1 + 2

5x = 3

x = 3/5

d)

y - y + 8y - 3 = 11 + y

0 + 8y - 3 = 11 + y

8y - y = 11 + 3

7y = 14

y = 14/7

y = 2

Espero ter ajudado