Question

EXPRESSÃO ALGÉBRICA

a) x + 9 = - 1

b) 10 = x + 8

c) 4= x - 10

d) x - 39 = - 79

e) 4 x - 9 = 23

Answer 1

Resposta:

a) x=-1+9

x=8

b)-x=8-10

-x=-2

x=2

c)-x=-10-4

-x=-14

x=14

d)x=39-79

x=-40

e)4x=23+9

4x=32

x=8