Question

2a+b=5 and 6y+4y=48 show that 20a+10b has a greater value than 3x+2y

Answer 1

Explanation:

There is an error in the question. 6x+4y = 48

Multiply first equation by 10:

20x+10y = 50

Divide second equation by 2:

3x+2y = 24

50>24, so 20x+10y > 3x+2y