Question

-y+ [5x- {2y-(3x- 5y)}
Put x = 3, 4 : 2​

Answer 1

Answer:

—y+[5×3–{2y-(3×3-5y)}

-y+[15-{2y-9+5y}

-y+[15-7y+9]

-y-7y+24

8y+24