The variable used in equation 4x +9 = 21 is – InterviewSolution

1.

The variable used in equation 4x +9 = 21 is

Answer»

VARIABLE USED in this EQUATION is X.

$\sf \: 4x + 9 = 21 \\ \sf \: 4x = 12 \\ \boxed{ \sf \: x = 3}$

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