Question

2) Encontre o valor de "X"
a) 2x +2=4
b) 5x + 2 =12
c) 4 +x+5= 20
d) 2+x=7​

Answer 1

Resposta:

a) x=1

b) x= 2

C) x = 11

d) x=5

Explicação passo-a-passo:

a) 2x+2=4

2x=4-2

2x=2

x=2/2

x=1

b)5x+2=12

5x=12-2

5x=10

x=10/5

x=2

c)4+x+5=20

x+9=20

x= 20-9

x= 11

d)2+x=7

x=7-2

x=5