Question

Solve 2x+y=11. x+y=8cross multiplication method​

Answer 1

Answer:

3 and 5

Step-by-step explanation:

formula is in the image and put the values in the formula

Answer 2

Answer:

__________

2x + y - 11 = 0 ______ ( i )

x + y - 8 = 0 _______ ( ii )

By cross multiplication , we have

➪ $\frac{1}{1} × \frac{-11}{-8} × \frac{2}{1} × \frac{1}{1}$

_____________✫____________✫__________

➪ $\frac{x}{1 × -8 - 1 × -11} = \frac{y}{-11 × 1 - ( -8 ) × 2} = \frac{1}{2 × 1 - 1 × 1}$

➪ $\frac{x}{-8 - ( -11 )} = \frac{y}{-11 - ( -16} = \frac{1}{2 - 1}$

➪ $\frac{x}{-8 + 11} = \frac{y}{-11 + 16} = \frac{1}{2 - 1}$

➪ $\frac{x}{3} = \frac{y}{5} = \frac{1}{1}$

➪ $\frac{3}{1} = \frac{5}{1}$

✰ Hence , x = 3 & y = 5 is required Solution .