Hey can someone me with this math question? : )

X=5, because you would set the equations equal to each other, and then solve by additive inverse. Then, you find the square root by isolating x, from which you get 5.

A) for the n row: 22+(n-1)×6therefore,b) 100-22=78that means (n-1)×6=7878÷6=1313+1=1414th row has 100 seats