Question

4) (1,0) Descubra o valor do @

a) @+@+ 65 – 15 = @+ 95 – 20 + 15

b) @+@+@ - 10 = @+@+ 8​​

HELPPPPP​

Answer 1

Letra A)

@+@+ 65 – 15 = @+ 95 – 20 + 15

2@ + 65 - 15 = @ + 95 - 20 + 15

2@ = @ + 95 - 20 + 15 - 65 + 15

2@ = @ + 75 + 15 - 65 + 15

2@ = @ + 90 - 65 + 15

2@ = @ + 25 + 15

2@ = @ + 40

2@ - @ = 40

@ = 40

Letra B)

@+@+ @ - 10 = @ + @ + 8

3@ - 10 = 2@ +8

3@ = 2@ + 8 + 10

3@ = 2@ + 18

3@ - 2@ = 18

@ = 18

Disponha, Att Lucas.