Respuesta :

celestialbabe

Answer: 9cm

Step-by-step explanation:

[tex]7x10=70cmx^{2}[/tex]

4(x)=4x

1.) 70+4x=106 (subtract 70 on both sides)

2.)4x=36 (divide 4 on both sides)

3.)x=9

answer=9

7x10=70cmxsquare

4(x)=4x

70+4x=106

4x=36

x=36/4

x=9

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