Solve for x:
15). x + 25 = - 50




16). x + 1492 = 0




17). x - 49 = 50




18). x - 64 = 128




19). x - 25 = - 50




20). x - 30 = - 90




21). x - 133 = 0




22). x + 133 - 158 = 25 (two steps)





23). Mr. Schilz has $326.74 in his bank account. Last week he wrote a check for $74.10. How much did he start out with? Write the algebraic equation and solve for x.