Question

A) 4 x - 20 = 10 - 2 x

B) x - 10 = 11 - 2 ×

C) 3 x - 15 = 5 - 2 x

D) 5 × - 10 = 14 - 3 ×

E) 3 × + 15 = - 10 - 2 ×

Por favor me ajudem!

Answer 1

a)

4x-20=10-2x

4x+2x=10+20

6x=30

x=30/6

x=5

b)

x-10=11-2x

x+2x=11+10

3x=21

x=21/3

x=7

c)

3x-15=5-2x

3x+2x=5+15

5x=20

x=20/5

x=4

d)

5x-10=14-3x

5x+3x=14+10

8x=24

x=24/8

x=3

e)

3x+15=-10-2x

3x+2x=-10-15

5x=-25

x=-25/5

x=-5

Answer 2

A) 4x - 20 = 10 - 2x

4x + 2x = 10 + 20

6x = 30

x = 5

B) x - 10 = 11 - 2x

x + 2x = 11 + 10

3x = 21

x = 7

C) 3x - 15 = 5 - 2x

3x + 2x = 5 + 15

5x = 20

x = 4

D) 5x - 10 = 14 - 3x

5x + 3x = 14 + 10

8x = 24

x = 3

E) 3x + 15 = - 10 - 2x

3x + 2x = -10 -15

5x = -25

x = -5