Question

ajuuuudaaaaaaaa help
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Answer 1

Resposta:

a.7x+5=68-2x  

7x+2x=68-5

9x=63

x=63/9

x=7

b. 14-3x=2x+29

-3x-2x=29-14

-5x=15

x=15/-5

x=-3

c.8x-9=2x+11

8x-2x=11+9

6x=20

x=20/10

x=2

d.10-4x=9-2x

-4x+2x=9-10

-2x=1

x2/1

x=2

Explicação passo-a-passo: