Question

A) x-3=0
B)x+7=4
C)x-5=2
D)2x+3=5
E)0,3x=1
F)3x=6
G)10x-10=20
H)2(x7=3x-4
I)2c+7=3x-4

Answer 1

Resposta:

a) x = 3

b) x = 2 - 7

x = - 5

c) x = 2 + 5

x = 7

d) 2x = 5 - 3

2x = 2

x = 2/2

x = 1

e) x = 1/0,3

f) x = 6/3

x = 2

g) 10x = 20 + 10

10x = 30

x = 30/10

x = 3

h) 2x - 10 = 14 + 7x

2x - 7x = 14 + 10

- 5x = 24 × (-1)

5x = - 24

x = -24/5

i) 2x - 3x = - 4 - 7

- x = - 11 × (-1)

x = 11