Question

solve for x and y
solve only by cross multiplication method​

Answer 1

Answer:

$2x - 3y = 13 \\ 7x - 2y = 20 \\ 6(2x - 3y) = 13 \\ 6(7x - 2y) = 20 \\ 12x - 6y = 13 \\ 42x - 6y = 20 \\ adding \: two \: equations \\ 12x - 6y = 13 \\ 42x - 6y = 20 \\ - 30 x = - 7 \\ x = 7 \div 30 \\ y = 12 \times 7 \div 30 - 6y \\ = 84 \div 30 - 6 = y \\ y = - 96 \div 30$