Question

Me ajudem a responder essas equaçoes com conta
A) X-15=27
B)X+3=408
C)3x+3=21
D)2X=142
E) X/2=7=
F)4X-16=4
Com Conta Por favor
​

Answer 1

Resposta:

a) x=-15=27

x=27+15

x=42

b)x+3=408

x=408-3

x=405

c)3x+3=21

3x=21-3

3x=18

x=18/3

x=6

d)2x=142

x=142/2

x=71

e)4x-16=4

4x=4+16

4x=20

x=20/4

x=5

Answer 2

x-15=27
x=27+15
x= 42

b)x+3=408
x=408-3
x=405


C)3x+3=21
3x=18
x=18÷3
x=6


D)2x=142
x=142÷2
x=71


E)X/2=7
X=7.2
x=14


F)4x-16=4
4x=16+4
4x=20
x=20÷4
x=5