{"product_id":"9780956631572","title":"21st Century SIMULTANEOUS EQUATIONS","description":"The book \"21st Century Simultaneous Equations\" develops a standard method (sered) to solve simultaneous equations, whether linear or non-linear, algebraic or trigonometric. It also includes the development of 3D trigonometry, determinants, matrices and vectors. The book provides solutions by spreadsheet and contains many worked examples. This is book 3 in the series of 5 books. Further information can be found on the website https:mcrfocus.com","brand":"MCR Focus Limited","offers":[{"title":"Default Title","offer_id":49787288518896,"sku":"9780956631572","price":15.95,"currency_code":"USD","in_stock":false}],"url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9780956631572","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}