Question

a) 4×-2=2×+10 ?

b) 4×+3=×+12 ?

c) 5×-2=×+2 ?

D) 4×+5=×+20 ?

E) 4×+4=2×+10 ?

F) 4×-4=×+8 ?

G) 5×=-10=×+30 ?

H) 4×-2=×+28 ?

I) 4×-2=-2×+10 ?

J) 5×-10 = - 5 ×+20 ?​

Answer 1

Resposta:

a) X= 6

b) X= 3

C) X= 1

Explicação passo-a-passo:

A)4X - 2X = 10 + 2

2X = 12

X = 12 ÷ 2 = "6"

B) 4X - X = 12 - 3

3X = 9

X= 9÷3 = "3"

C) 5X - X = 2 + 2

4X = 4

X = 4÷4 = "1"

Answer 2

Resposta:

a) 4x-2 = 2x+10

4x-2x = 10+2

2x = 12

x = 6

b) 4x+3 = x+12

4x-x = 12-3

3x = 9

x = 3

c) 5x-2 = x+2

5x-x = 2+2

4x = 4

x = 1

d) 4x+5 = x+20

4x-x = 20-5

3x = 15

x = 5

e) 4x+4 = 2x+10

4x-2x = 10-4

2x = 6

x = 3

f) 4x-4 = x+8

4x-x = 8+4

3x = 12

x = 4

g) 5x-10 = x+30

5x-x = 30+10

4x = 40

x = 10

h) 4x-2 = x+28

4x-x = 28+2

3x = 30

x = 10

i) 4x-2 = -2+10

4x = 10 (os dois termos iguais (-2 = -2) são cancelados)

x= 5/2

j) 5x-10 = -5x+20

5x+5x = 20+10

10x = 30

x = 3