Question

x minus Y is equal to 7 and x square minus y square is equal to 133 find X square + Y square​

Answer 1

Step-by-step explanation:

x-y=7

x²-y²=133

${x}^{2} - {y}^{2} = (x + y)(x - y) \\ 133 = (x + y) \times 7 \\ (x + y) = \frac{133}{7} \\ (x + y) = 19$