Question

the sum of two numbers is 100 and their differences is 2 established the equation and solve by method of cross multiplication​

Answer 1

Answer:

this is the answer of this question I hope it's rifht

Answer 2

x=51,y=49

Step-by-step explanation:

$x+y=100-(i)\\x-y=2-(ii)$

By cross multiplication method

$\frac{x}{b_1c_2-b_2c_1}=\frac{y}{c_1a_2-c_2a_1}=\frac{1}{a_1b_2-a_2b_1}\\\frac{x}{1\times(-2)-(-1)\times(-100)}=\frac{y}{-100\times1-(-2)\times1}\\\frac{x}{-102}=\frac{y}{-98}=\frac{1}{-2}\\\frac{x}{-102}=\frac{1}{-2} \\x=51\\or\\\frac{y}{-98}=\frac{1}{-2}\\y=49$