Verified answer

primeiro passo

2x+3x-15=7

5x=22

x=22/5

2x/3 +1=0

2x+3=0

2x= -3+0

x = -3/2

15x-3x+10=28

12x= 28-10

x= 18/12

x= 9/6

x= 3/2

24+13=37

=37-24-13

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