How do you solve elimination on this problem 3x 2y-31 5x 2y-49?

Two numbers qhose sum is 58 and whose difference is 16? What is a square number less than 80? What are two equivalent fractions for two over ten? How many 1.20 bread rolls for 6? Which word appears the most times in the King James bible? How many straight edges does a square pyramid have? What is 25000 m in km? What is (2.4 plus 54) divided by 34 minus 2.75? WHAT IS 7487 DIVED BY 8 REMAINDER? Does a rhombus have 2 sides that are perpendicular? What is the simplest form 70 over 196? What is differential solution? What is 7g plus 8 equals 57? How do you put 34 over 100 in simplest form? What number is 472 less than 5487? What is the process to solve for X in 400 divide x - 10x equals 0? What is 25.730 to 1 significant figure? How cost accounting helps the firm in determining the selling price? How many syllables does the word wrong have? what are the 3 numbers I should multiply to get the number 1170?