Question:Solve the following simultaneous equations 2x + 3y = 7 7y - y = 13
Answer
Let 2x + 3y = 7 ------- (1) 7y - y = 13 ---------(2) Multiply Equation (2) x 3 and then sum up equation (1) with the equation (2) We have, 2x+ 3y = 7 21x - 3y = 30 ---------------- 23x =46 `:.` x=46/23=2