Question

resolva a equação:

a)7x-3=x+5-2x

b)4x+2=38

c)9x=6x+12

d)5x-1=3x+11

e)2x+8=x+13​

Answer 1

Explicação passo-a-passo:

a)7x-3=x+5-2x

7x - 3 = -x + 5

7x + x = 5 + 3

8x = 8

x = 8/8

x = 1

b)4x+2=38

4x = 38 - 2

4x = 36

x = 36/4

x = 9

c)9x=6x+12

9x - 6x = 12

3x = 12

x = 12/3

x = 4

d)5x-1=3x+11

5x - 3x = 11 + 1

2x = 12

x = 12/2

x = 6

e)2x+8=x+13

2x - x = 13 - 8

x = 5