Question

5x+3x=
X+X+8=
7X-2-5X=
12X-10X-4=
-X-2X-4=
8X=5X+4,5

Answer 1

Explicação passo-a-passo:

a) 5x + 3x = 8x

b) 2x + 8 =

x = 8/2 = 4

c) 7x - 2 - 5x =

7x - 5x - 2 =

2x - 2 =

2x = 2

x = 1

d) 12x - 10x - 4 =

2x - 4 =

2x = 4

x = 2

e) -x - 2x - 4

-3x - 4

-3x = 4

f) 8x = 5x + 4,5

8x - 5x = 4,5

3x = 4,5

x = 4,5/3 = 1,5.