Question

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Answer 1

Explicación paso a paso:

Perímetro= 2x+3+x+5+3x-1

19 = 2x+3+x+5+3x-1

6x+7=19

6x= 19-7

6x= 12

x=12/6

x= 2

2x+3= 2(2)+3

= 4+3

= 7cm

x+5= 2+5

=7cm

3x-1= 3(2)-1

= 6-1

= 5 cm

7cm+7cm+5cm= 19cm