Question

X(0.5x)=800 me puden ayudar

Answer 1

x=40 ó -40

40(.5(40))=800

40(20)=800

800=800

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-40(.5(-40))=800

-40(-20)=800

800=800

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x(.5x)=800

.5x^2=800

(.5x^2)/.5=(800)/.5

x^2=1600

x=√1600

x=+-40

Answer 2

$x \frac{x}{2 } = 800 \\ {x}^{2} = 1600 \\ x = \sqrt{1600} \\ x = 40$