Question

A) 4 X + 10 = 3 X + 10
B) 7 X – 30 = 6 X + 30
C) 18 X - 40 = 30 + 10 X
D) 11 X – 121 = 10 X + 21
E) 25 X + 50 = 100
F) 30 X - 60 = 160
G) 3X + 5X = 100
H) 12 X - 70 = 7X + 50
I) 8 X - 26 = 56
J) 14 X – 90 = 7 X + 12
Por favor passo a passo

Answer 1

Resposta:

a) 0

b) 60

c) 8,75

d) 142

e) 2

f) 7,333....

g) 12,5

h) 24

i) 10,25

j) 14,571

a) 4x + 10 = 3x + 10

4x - 3x = 10 - 10

x = 0

b) 7x - 30 = 6x + 30

7x - 6x = 30 + 30

x = 60

c) 18x - 40 = 30 + 10x

18x - 10x = 30 + 40

8x = 70

x = 70/8

x = 8,75

d) 11x - 121 = 10x + 21

11x - 10x = 21 + 121

x = 142

e) 25x + 50 = 100

25x = 100 - 50

25x = 50

x = 50/25

x= 2

f) 30x 60 = 160

30x = 160 + 60

30x = 220

x = 220/30

x = 7,333....

g) 3x - 70 = 7x + 50

12x -7x = 50 + 70

5x = 120

x = 120/5

x = 24

i) 8x - 26 = 56

8x = 56 + 26

8x = 82

x = 82/8

x = 10,25

j) 14x - 90 = 7x + 12

14x - 7x = 12 + 90

7x = 102

x = 102/7

x = 14,571