Question

Resolva as seguintes equações:
A)10=X+8. B)15=X+20


C)4=X-10 d)7=X+8


e)0=X-12. f)-3=X+10



Exemplo : X-3= 14
X=14+3
X=17

Outro exemplo: 2-7= X+8
X +8= - 7
X= -7-8
X= -15

Answer 1

a)

$10 = x + 8\\x = 10 - 8\\x = 2$

b)

$15=x+20\\x=15-20\\x=-5$

c)

$4=x-10\\x=4+10\\x=14$

d)

$7=x+8\\x=7-8\\x=-1$

e)

$0=x-12\\x=12$

f)

$-3=x+10\\x=-3-10\\x=-13$