3y 9 3y 1 July 8, 2019 16 32 64 128 5x 3y 9 2x 3y 12 X 3y 9 2x 3y 12 Solve x 3y 9 3x 3y =- 13 5x 3y 9 2x 3y 12 by substitution method 5x 3y 9 2x 3y 12 by cramer's rule 5x 3y 9 2x 3y 12 by simultaneous equations 6x 3y 9 2x 3y 1 5x 3y 9 2x 3y 12 by elimination method 5x 3y 9 2x 3y 12 answer
