Question

45÷(7+8)=3x al cuadrado

Answer 1

$45:(7+8)=3x^{2}$

$45:(15)=3x^{2}$

$3 =  3x^{2}$

$\frac{3}{3} = x^{2}$

$\frac{1} = x^{2}$

$\sqrt{1} = \sqrt{ x^{2} }$

1 = x