Question

resolva os intens A)3x+5=-3x7
B)4x+9=7-5
C)-8x+9=-5x
D)-13x+8=-9x
E)9x+5=3x+5x mim ajuda ai​

Answer 1

Resposta:

A)x=2/6

B)-7/4

C)3=x

D)2=x

E)x=-5

Explicação:

A)3x+6=-3x+7

3x+3x = 7-5

6x = 2

x = 2/6

B)4x+9=7-5

4x=7-5-9

4x=2-9

4x=-7

x = -7/4

C)-8x+9=-5x

9=-5x+8x

9=3x

9÷3=x

3=x

D)-13x+8=-9x

8=-9x+13x

8=4x

8÷4=x

2=x

E)9x+5=3x+5x

9x-3x-5x=-5

6x-5x=-5

x=-5