Respuesta :

A 51

x=10 so we substitute 10 into the spots for x in the beginning

x=10+7

x=17*3

x=51
If bar x = 10 ;

Where you see the var x replace it with 10.

X = x + 7
X = 10 + 7 = 17

Substitute the value of the first var X in the equation

X = X* 3
X = 17 * 3 = 51

Therefore the final value of var x is 51 option A