Question

plz anwer these with whole method​

Answer 1

Answer:

3. (c) x + 2y = 7, as there are two variables (x and y)\

4.

$2/3x + 1 = 15/9\\2/3x = 15/9 - 1\\2/3x= 6/9\\x = 6/9 * 3/2\\x= 1$