Question

Simplifique e resolva a aquação 3.(5+3×)+5.(-×-1)=22?

Answer 1

3(5+3)+5(−−1)=22

3(5+3x)+5(−x−1)=22

15+9−5−5=22

15+9x−5x−5=22

10+4=22

10+4x=22

4=22−10

4x=22−10

4=12

4x=12

=3

Answer 2

Simplifique e resolva a aquação.           3.(5+3×)+5.(-×-1)=22?                                3.(5+3x) + 5.(-x-1) = 22 15 + 9x - 5x - 5 = 22 10 + 4x = 22 4x = 22 - 10 4x = 12 x = 12/4 x = 3