Question

2.resolva as equações d)3x+1=x+9 e) 4x-11=7-2x f)3x+1=5+x​

Answer 1

Explicação passo-a-passo:

d)3x+1=x+9

3x+1=x+9

3x-x=9-1

2x=8

x=8/2

x=4

e) 4x-11=7-2x

4x-11=7-2x

4x+2x=7+11

6x=18

x=18/6

x=3

f)3x+1=5+x

3x+1=5+x

3x-x=5-1

2x=4

x=4/2

x=2

Espero ter ajudado!

Answer 2

d) 3x - x = 9 - 1
2x = 8
x = 8/2
x = 4

e) 4x + 2x = 11 + 7
6x = 18
x = 18/6
x = 3

f) 3x - x = 5 - 1
2x = 4
x = 4/2
x = 2