As housing, utilities, and everyday costs of living continue to climb, a growing share of Massachusetts residents say the math of staying in the Bay State no longer works. In a recent Boston Globe/Suffolk University poll and an informal survey of Boston.com readers, residents said Massachusetts is just too expensive to get by. The Globe/Suffolk survey found that about one-third of Massachusetts voters have seriously considered leaving the state in the past year because of affordability pressures, even as a majority still believe the state is generally moving in the right direction.